Why did a book built on some genuinely shaky science end up changing how I think about my own setbacks? That’s the question I couldn’t shake after finishing Malcolm Gladwell’s David and Goliath: Underdogs, Misfits, and the Art of Battling Giants. I’m writing this review because I think you deserve both halves of that experience: the part where Gladwell’s storytelling gets under your skin, and the part where a handful of his central claims don’t survive contact with the researchers he cites.
You won’t need to go back to the book after this. Everything that matters, the stories, the numbers, the arguments, and the places where they crack, is here.
Table of Contents
Overview
David and Goliath is Malcolm Gladwell’s fifth book. Across nine chapters split into three parts, he argues that we consistently misjudge advantages and disadvantages: giants are often weaker than they look, and underdogs often carry hidden strengths born from the very things that disadvantage them.
He reopens the biblical duel of David and Goliath to argue David was never the underdog at all, then applies that reframing to basketball coaching, class size, Ivy League admissions, dyslexia, childhood grief, the American civil rights movement, the Troubles in Northern Ireland, and California’s Three Strikes law. It’s a fast, emotionally engaging read.
It’s also a book where at least two of the load-bearing studies (the Princeton “hard to read font” experiment and the dyslexia-entrepreneur statistic) have been directly and, in my view, fairly challenged by working scientists.
I still think it’s worth your time. I just don’t think you should take every number in it at face value, and this review tells you which ones to trust.
Who David and Goliath Is For, and Who Should Skip It
If you like narrative nonfiction that reads like a string of New Yorker profiles stitched around one big idea, David and Goliath was built for you.
Parents weighing a “good school versus a great school” decision, teachers curious about class size, or anyone who has ever felt like the least talented person in a room they fought hard to get into will find something here that speaks directly to them.
Readers who want rigorous, hedge-your-bets social science, on the other hand, or who already dislike Gladwell’s habit of turning a single study into a universal law, will spend the whole book gritting their teeth.
I fall somewhere between the two camps, and I’ll explain why below.
Introduction
David and Goliath: Underdogs, Misfits, and the Art of Battling Giants is Malcolm Gladwell’s fifth book, published by Little, Brown and Company (a division of Hachette Book Group) in October 2013.
Gladwell is a staff writer at The New Yorker and the author of The Tipping Point, Blink, Outliers, and What the Dog Saw, and by the time this book came out he was already one of the most widely read nonfiction writers alive.
The book sits in the same general territory as his earlier work, popular social science built from case studies, but it leans harder on individual biography than Outliers did.
As one reviewer at The Christian Century put it, Gladwell himself described this book as being “much more concerned with individuals and the choices they make” than his previous, more theory-driven titles.
David and Goliath‘s central thesis is stated plainly in the introduction: we misread confrontations between the powerful and the powerless because a giant’s own strengths often become “the sources of great weakness,” and because being an underdog can, in some circumstances, open doors that people never appreciate.
Gladwell isn’t arguing that disadvantage is secretly good for everyone, and to his credit he says so directly more than once.
He’s arguing that we have a bad definition of what counts as an advantage in the first place, and that this bad definition costs us in specific, traceable ways: in how we choose schools, in how governments police unrest, and in how grieving parents decide what to do with their grief.
Background
To place David and Goliath in context, it helps to know that Gladwell wrote it five years after Outliers (2008), which had already made “10,000 hours” and “cultural legacy” part of the popular vocabulary. David and Goliath was, by most accounts, a commercial success and a more divisive critical one.
It debuted high on bestseller lists, the way all of Gladwell’s books do, and it also drew some of the sharpest scientific pushback of his career, most notably from the psychologist Christopher Chabris in The Wall Street Journal.
I’ll return to that fight in the Analysis section, because I think understanding it is essential to reading this book well.
For now, it’s enough to know that the book you’re about to read (or that I’m about to summarize for you) was controversial from its first week in print, and that the controversy was never really about the writing. It was about the evidence underneath it.
David and Goliath Summary
The Setup: David Was Never the Underdog
Gladwell opens by retelling the Valley of Elah story from 1 Samuel, and immediately flips it. Citing the historian Baruch Halpern and the ballistics analysis of Eitan Hirsch, he argues that Goliath was not the unbeatable warrior of tradition.
Hirsch calculated that a sling stone traveling at roughly 34 meters per second carries enough force to fracture a human skull, meaning David’s weapon was, functionally, closer to a firearm than a child’s toy.
Gladwell also floats the theory, first suggested in a 1960 medical journal article and later argued by Israeli neurologist Vladimir Berginer, that Goliath suffered from acromegaly, a pituitary condition that causes gigantism and can impair vision, which would explain why he needed a shield-bearer to guide him and why he moved so slowly toward a boy circling him with a ranged weapon.
Whether or not you buy the acromegaly diagnosis (more on that later), the reframe sets up the whole book: what looks like an overwhelming mismatch is often nothing of the kind, once you look closely enough at what each side is actually bringing to the fight.
Part One: The Advantages of Disadvantages (and the Disadvantages of Advantages)
Chapter One, Vivek Ranadivé. Ranadivé, an Indian-born Silicon Valley executive who had never played basketball, coached his twelve-year-old daughter’s team to the national championships using a nonstop full-court press for the entire game, because his girls couldn’t shoot or dribble well enough to win any other way.
Gladwell pairs this with the political scientist Ivan ArreguÃn-Toft’s research on 202 asymmetric wars over two centuries: the stronger side won about 71.5 percent of the time overall, but when the weaker side refused conventional tactics and fought unconventionally, as T. E. Lawrence did against the Ottomans in the Hejaz Desert, its win rate jumped to 63.6 percent.
The uncomfortable finding, backed by ArreguÃn-Toft’s own dataset, is that of 152 lopsided conflicts where the underdog fought the conventional way anyway, it lost 119 times. Underdogs, in other words, usually lose not because they’re weak, but because they insist on fighting like the favorite.
Chapter Two, Teresa DeBrito. This chapter tackles class size, and it’s the one I’d point to first if you want to see Gladwell’s method at its most careful. He walks through the economist Caroline Hoxby’s “natural experiment” using Connecticut’s fluctuating small-town enrollment data and reports her finding of a “precise zero” effect from class size reduction in the medium range.
He also cites Eric Hanushek’s summary of hundreds of class-size studies, and lays out the inverted-U curve concept, borrowed from psychologists Barry Schwartz and Adam Grant, arguing that a class can be too small the same way a parent can have too much money, or a person can drink too much wine.
The elite Connecticut boarding school Hotchkiss, with $50,000 tuition and an average class size of twelve, becomes his example of prestige mistaking a genuine limitation for a luxury.
Chapter Three, Caroline Sacks. This is the strongest chapter in David and Goliath on pure evidentiary grounds, and it’s built entirely around what psychologists call the Big Fish, Little Pond Effect, or BFLPE, a real and well-replicated phenomenon first named by the psychologist Herbert Marsh in 1984.
Gladwell tells the story of the Impressionist painters choosing to exhibit outside the official Paris Salon in 1874 rather than compete inside it, then applies the same logic to Sacks, a talented science student who dropped out of chemistry at Brown University but, by her own account, would have finished her science degree had she attended the University of Maryland instead.
He backs this with hard numbers: at Hartwick College, students in the bottom third by math SAT score earned 17.8 percent of STEM degrees; at Harvard, students in the bottom third earned an almost identical 15.4 percent, despite scoring higher on the SAT than Hartwick’s top third.
He cites Mitchell Chang’s research finding that STEM completion rises by roughly 2 percentage points for every 10-point drop in a university’s average SAT score, and John Conley and Ali Sina Önder’s finding that top graduates of “non-top-30” economics PhD programs out-publish all but the very best graduates of Harvard, MIT, and Yale.
Part Two: The Theory of Desirable Difficulty
Chapter Four, David Boies. Boies, the trial lawyer who led Microsoft’s antitrust prosecution and later argued the case that overturned California’s Proposition 8, is severely dyslexic and still reads slowly today.
Gladwell frames dyslexia here as a possible “desirable difficulty,” a term coined by UCLA psychologists Robert and Elizabeth Bjork, and cites a City University London study by Julie Logan finding that roughly a third of successful entrepreneurs studied showed signs of dyslexia.
He also describes an experiment by Adam Alter and Daniel Oppenheimer in which Princeton students who took a short reasoning test (the Cognitive Reflection Test) printed in a hard-to-read gray italic font scored higher, 2.45 out of 3 on average, than students who read it in a normal font, 1.9 out of 3.
I want to flag both of these studies now, because I’m going to come back to them hard in the Analysis section.
Chapter Five, Emil “Jay” Freireich. This is, for me, the emotional center of David and Goliath. Freireich, whose father died by suicide during the Depression and who grew up in poverty in Chicago, became the oncologist who pioneered aggressive combination chemotherapy for childhood leukemia in the 1950s and 60s, over the fierce objection of colleagues who called his methods “unconscionable.”
Before his and Tom Frei’s VAMP protocol, roughly 90 percent of children admitted with leukemia died within six weeks.
Today the cure rate for the form of leukemia they treated exceeds 90 percent. Gladwell connects Freireich’s willingness to keep pushing through failure to the Canadian psychiatrist J. T. MacCurdy’s wartime theory of “near misses” and “remote misses” during the London Blitz, in which forty thousand deaths and forty-six thousand injuries across a city of eight million people left far more residents emboldened than traumatized, and to research by Marvin Eisenstadt and historian Lucille Iremonger finding that 34.5 percent of a sample of 573 eminent historical figures had lost a parent by age fifteen, compared with 67 percent of British prime ministers between 1800 and the Second World War losing a parent by age sixteen.
Chapter Six, Wyatt Walker. Here Gladwell turns to the Birmingham civil rights campaign of 1963, and specifically to Martin Luther King’s “nuts and bolts” strategist Wyatt Walker, who deliberately exaggerated crowd sizes to newspapers (getting eleven hundred marchers reported when only a dozen or so had walked) and provoked Bull Connor’s police dogs and fire hoses into the confrontation captured in Bill Hudson’s famous May 1963 photograph, a photograph that helped push the Civil Rights Act of 1964 through Congress.
Gladwell frames Walker’s tactics through the African-American folk tradition of the trickster hero, Brer Rabbit and Terrapin the turtle, arguing that when you have nothing to lose, breaking the other side’s rules becomes not just possible but strategically necessary.
Part Three: The Limits of Power
Chapter Seven, Rosemary Lawlor. This chapter moves to the Troubles in Belfast, tracing General Ian Freeland’s 1970 curfew of the Lower Falls neighborhood, in which three thousand British troops searched a Catholic community of eight thousand people over thirty-six hours, and the subsequent escalation from 13 deaths in 1969 to 497 deaths in 1972.
Gladwell uses this, plus footage of a chaotic kindergarten classroom recorded at the University of Virginia’s Curry School of Education, to build his “principle of legitimacy”: authority only produces obedience when people feel they have a voice, when the rules are predictable, and when enforcement is applied fairly.
He also profiles Joanne Jaffe’s J-RIP program in Brownsville, Brooklyn, which paired intensive surveillance of young repeat offenders with Thanksgiving turkeys and personal visits to their families, on the theory that policing without legitimacy just breeds more defiance.
Chapter Eight, Wilma Derksen. This chapter directly contrasts two grieving parents. Mike Reynolds, whose daughter Kimber was murdered in Fresno in 1992, channeled his grief into California’s 1994 Three Strikes law, passed with 72 percent voter approval, which required a mandatory 25-years-to-life sentence for a third serious felony.
Wilma Derksen, whose thirteen-year-old daughter Candace was murdered in Winnipeg in 1984, drew on her Mennonite faith to publicly withhold judgment and eventually extend forgiveness to her daughter’s killer, identified by DNA only in 2007.
Gladwell lays out the criminologist Todd Clear’s research suggesting incarceration follows its own inverted-U curve, doing clear good at low levels but starting to increase crime once more than roughly 2 percent of a neighborhood is imprisoned in a given year, and notes, in his own endnotes, that California voters scaled Three Strikes back in a 2012 referendum after two decades of unresolved debate over whether it had worked at all.
Chapter Nine, André Trocmé. David and Goliath closes in the French village of Le Chambon-sur-Lignon, where the Huguenot pastor André Trocmé and his wife, Magda, organized the town to hide an estimated several hundred Jewish refugees from the Vichy government and the Gestapo between 1940 and 1944, enrollment at the town’s school rising from 18 students to 350 over that period.
Gladwell traces the town’s defiance back to centuries of Huguenot persecution, arguing that people who have already survived one campaign of annihilation are very hard to frighten with a second one.
David and Goliath ends without a separate conclusion chapter, closing instead on Trocmé’s own grief over his son Jean-Pierre’s suicide and a line about pine trees that don’t regenerate their tops but “grow in thickness” instead.
David and Goliath Analysis
Here’s where I have to be honest with you, because that’s the whole point of a review like this. David and Goliath is not one book scientifically. It’s at least three.
The Caroline Sacks chapter is the strongest, because the Big Fish, Little Pond Effect isn’t a Gladwell invention or a single cherry-picked paper. Herbert Marsh’s original 1984 research has been tested across dozens of countries and, according to a 2018 meta-analysis published in Frontiers in Psychology, the effect holds up as one of the more robust findings in educational psychology.
When Gladwell tells you a talented student can do worse, not better, by choosing the more prestigious school, he’s reporting something real.
The dyslexia chapter is where things get shakier, and I don’t think I’m the one saying so first. When David and Goliath came out, the Wall Street Journal published a 2,500-word review by the Union College psychologist Christopher Chabris, arguing that Gladwell’s signature move is treating correlation as causation and leaning on individual studies far past what they can support.
Chabris singled out the Alter and Oppenheimer “hard to read font” experiment, noting that a much larger replication attempt failed to reproduce the effect, a detail Gladwell’s book never mentions.
The psycholinguist Mark Seidenberg went further in comments to Medical Daily, calling the dyslexia-entrepreneur study Gladwell leans on “weak at best” and describing the leap from that study to a causal claim about dyslexia and business success as a real problem in the reasoning.
I don’t think this means the dyslexia chapter is worthless. David Boies’s own account of learning to listen instead of read is moving and, as far as I can tell, honestly reported.
But the general claim that dyslexia functions as some kind of retooled advantage rests on thinner ground than the book’s confident tone suggests, and you should read that chapter as a compelling hypothesis rather than a settled finding.
The Three Strikes chapter, to Gladwell’s credit, is more careful than the dyslexia chapter, and it’s worth noticing that difference. He presents Todd Clear’s inverted-U argument alongside the sobering fact, buried in his own endnotes, that a massive analysis by criminologists Anthony Doob and Cheryl Marie Webster found no consistent evidence that harsher sentences deter crime at all.
He doesn’t resolve the debate. He shows you both sides and lets the human cost, Kimber Reynolds’s murder against Candace Derksen’s, carry the emotional weight instead. That’s Gladwell doing what he does best: using story to make you sit with a genuinely unresolved policy question longer than you otherwise would.
There’s also a structural tension a few critics have pointed out that I think is worth naming plainly. In Chapter Three, Gladwell argues that being outmatched at a prestigious school is an undesirable difficulty that crushed Caroline Sacks’s confidence.
Then, one chapter later, he argues that being outmatched by your own reading disability is a desirable difficulty that built David Boies’s career.
He does try to draw a line between the two (he’s explicit that not all difficulty is good difficulty), but the line is fuzzier in practice than the chapter titles suggest, and it’s fair to ask, as more than one reviewer did in 2013, how a reader is supposed to know in advance which kind of difficulty they’re facing.
Strengths and Weaknesses
What I loved, unreservedly, was the human material.
Freireich shouting “You’re gonna kill people!” at a blood bank that wouldn’t release fresh platelets, Trocmé’s wife Magda opening her door to a terrified stranger and saying only “Come in,” Wilma Derksen sitting with a grieving stranger’s account of what obsession with justice had cost him, on the night of her own daughter’s funeral, none of this reads like research summarized into prose.
It reads like a writer who spent real time with real people and knew exactly which detail to keep.
What frustrated me was the confidence gap between the strongest chapters and the weakest ones.
Gladwell writes about the Princeton font study and the dyslexia-entrepreneur statistic with the same unhedged certainty he brings to Marsh’s four-decade research program, and a casual reader has no way to tell, from the prose alone, that one of those claims is on far sturdier footing than the other.
A reviewer at The Christian Century noted that this book, more than Gladwell’s earlier ones, leans on individual choice and religious conviction rather than the “high, theoretical level” arguments of Outliers, and I think that shift is part of why the emotional chapters land so hard and the statistical ones sometimes wobble.
He’s a storyteller working with a scientist’s toolkit, and in this book, more than in his earlier ones, you can occasionally see the seams.
How David and Goliath Compares to Similar Books
If the Caroline Sacks chapter is the one that stays with you, Carol Dweck’s Mindset, which I’ve reviewed in full here, makes a useful next stop.
Dweck’s fixed-versus-growth framework and Gladwell’s Big Fish, Little Pond material are asking a related question from opposite directions: not just how talented you are, but how you’re taught to relate to your own struggle.
If it’s the dyslexia and Freireich chapters that grabbed you, Nassim Nicholas Taleb’s Antifragile covers similar territory, systems and people that don’t just survive stress but actively improve from it, though Taleb’s version is argued through finance and philosophy rather than case-by-case biography, and reads considerably more combative on the page.
Angela Duckworth’s Grit, which Gladwell himself blurbed as “persuasive and fascinating,” makes a gentler, more research-anchored version of the same underlying case for perseverance under difficulty.
I’ll also say plainly that David and Goliath isn’t on our own 100 Best Psychology Books of All Time list, and having gone back through it after finishing this review, I don’t think it should be, not because it isn’t worth your time, but because it sits closer to narrative nonfiction than to psychology proper.
If you want the psychology behind the Big Fish, Little Pond chapter without the surrounding parables, Marsh’s own academic papers, dry as they are, will serve you better.
Conclusion
I’d recommend David and Goliath to general readers, to parents weighing school choices, and to anyone who wants a fast, emotionally engaging case for rethinking what disadvantage actually costs and confers.
I would not recommend it as a reliable primer on the underlying science, and I’d actively steer students writing research papers toward Marsh’s original work, Hoxby’s Connecticut study, and the Chabris review rather than toward Gladwell’s chapter summaries alone.
Read it for the stories. Fact-check the statistics before you repeat them at dinner. That’s not a condemnation. It’s just what I’d want someone to tell me before I started.
