This is a manual for the 21st-century citizen, and it succeeds where other big data accounts have failed - it is accessible, refreshingly critical and feels relevant and urgent -- Federica Cocco * Financial Times *Fascinating and deeply disturbing -- Yuval Noah Harari * Guardian Books of the Year *O'Neil's book offers a frightening look at how algorithms are increasingly regulating people... Her knowledge of the power and risks of mathematical models, coupled with a gift for analogy, makes her one of the most valuable observers of the continuing weaponization of big data... She does a masterly job explaining the pervasiveness and risks of the algorithms that regulate our lives * New York Times Book Review *Well-written, entertaining and very valuable -- Danny Dorling * Times Higher Education *O'Neil has become a whistle-blower for the world of Big Data... Her work makes particularly disturbing points about how being on the wrong side of an algorithmic decision can snowball in incredibly destructive ways * Time *Often we don't even know where to look for those important algorithms, because by definition the most dangerous ones are also the most secretive. That's why the catalogue of case studies in O'Neil's book are so important; she's telling us where to look * Guardian *In today's world, if you want to change your fate you've got to pray at the altar of the algorithm... As math guru Cathy O'Neil argues in her newest book, these models are just the latest way America's institutions perpetuate bias and prejudice to reward the rich and keep the poor, well, poor. It's a nuanced reminder that big data is only as good as the people wielding it * Wired, Required Science Reading from 2016 *Not math heavy, but written in an exceedingly accessible, almost literary style; her fascinating case studies of WMDs fit neatly into the genre of dystopian literature. There's a little Philip K. Dick, a little Orwell, a little Kafka in her portrait of powerful bureaucracies ceding control of the most intimate decisions of our lives to hyper-empowered computer models riddled with all of our unresolved, atavistic human biases -- Chris Jackson * Paris Review *Cathy O'Neil has seen Big Data from the inside, and the picture isn't pretty. Weapons of Math Destruction opens the curtain on algorithms that exploit people and distort the truth while posing as neutral mathematical tools. This book is wise, fierce, and desperately necessary -- Jordan Ellenberg, author of How Not To Be WrongEven as a professional mathematician, I had no idea how insidious Big Data could be until I read Weapons of Math Destruction. Though terrifying, it's a surprisingly fun read: O'Neil's vision of a world run by algorithms is laced with dark humour and exasperation - like a modern-day Dr Strangelove or Catch-22. It is eye-opening, disturbing, and deeply important -- Steven Strogatz, Cornell University, author of The Joy of xWeapons of Math Destruction is a fantastic, plainspoken call to arms. Cathy O'Neil's book is important precisely because she believes in data science. It's a vital crash course in why we must interrogate the systems around us and demand better -- Cory Doctorow, author of Little Brother and co-editor of Boing BoingIn this fascinating account, Cathy O'Neil leverages her expertise in mathematics and her passion for social justice to poke holes in the triumphant narrative of Big Data. She makes a compelling case that math is being used to squeeze marginalized segments of society and magnify inequities. Her analysis is superb, her writing is enticing, and her findings are unsettling -- danah boyd, founder of Data & Society and author of It's ComplicatedNext time you hear someone gushing uncritically about the wonders of Big Data, show them Weapons of Math Destruction. It'll be salutary -- Felix Salmon, FusionWeapons of Math Destruction is the Big Data story Silicon Valley proponents won't tell... [It] pithily exposes flaws in how information is used to assess everything from creditworthiness to policing tactics... A thought-provoking read for anyone inclined to believe that data doesn't lie * Reuters *O'Neil is an ideal person to write this book... She is one of the strongest voices speaking out for limiting the ways we allow algorithms to influence our lives and against the notion that an algorithm, because it is implemented by an unemotional machine, cannot perpetrate bias or injustice... While Weapons of Math Destruction is full of hard truths and grim statistics, it is also accessible and even entertaining. O'Neil's writing is direct and easy to read - I devoured it in an afternoon -- Evelyn Lamb * Scientific American *If you've ever suspected there was something baleful about our deep trust in data, but lacked the mathematical skills to figure out exactly what it was, this is the book for you * Salon *