Don't Believe Everything You Think: The 6 Basic Mistakes We Make in Thinking
At a glance
LuvemBooks Verdict
Best for
General readers, students, and educators who want a structured, research-backed introduction to the six core ways human cognition goes wrong — particularly those using the book in critical-thinking, decision-making, or media-literacy courses.
Worth it if
You want a modular, well-documented survey of cognitive pitfalls — from confirmation bias and faulty memory to social influence and pseudoscientific thinking — presented in accessible, practical terms with an extensive bibliography to support further study.
Skip if
You're already well-versed in landmark critical-thinking titles (Gilovich, Sagan) and are hoping for fresh revelations rather than a thorough consolidation, or you prefer a narrative-driven, personality-led style over a methodical, chapter-by-chapter framework.
What readers & critics say
Metapsychology.net praised the book as well-written, highly accessible, and well-suited to high school and first-year college critical-thinking courses, noting Kida's effective use of examples from the stock market, gambling, medicine, and the paranormal. Sobrief.com reported that the book's skeptical approach and discussion of scientific thinking were generally well-received, though some reviewers found the writing style dry or the content repetitive.
Sources: Metapsychology.net, Sobrief.com, NHBS, Pearce on Earth, LibraryThingLook inside the book
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- Is it worth reading?
- For readers seeking a structured, research-backed introduction to cognitive bias and critical thinking, Don't Believe Everything You Think delivers exactly what its title promises — a clear, modular breakdown of six distinct reasoning mistakes, grounded in real-life examples and documented research. The book's chapter-by-chapter architecture makes it well-suited to both classroom use and self-directed study, and the extensive bibliography supports anyone who wants to pursue the underlying science. The main caveats are that some reviewers found the writing style dry relative to more narrative-driven treatments, and the 2006 publication date means readers will need to supply their own contemporary examples to supplement Kida's cultural reference points.
- Similar books
- Readers drawn to Don't Believe Everything You Think will find strong company in several closely related titles. Daniel Kahneman's Thinking, Fast and Slow is the field's landmark deep-dive into the two cognitive systems that drive judgment and decision-making — a more expansive and narrative-rich treatment of much of the same territory. Carl Sagan's The Demon-Haunted World shares Kida's skeptical orientation and advocacy for scientific reasoning as a corrective to pseudoscientific thinking, and is directly cited within the book itself. David McRaney's You Are Not So Smart covers similar cognitive biases with a more conversational, blog-rooted voice that some readers find more immediately engaging. David Robson's The Intelligence Trap examines a related but distinct question — why smart people are not immune to systematic errors in thinking. For readers whose interest extends toward managing the mental habits that fuel poor decisions, Nick Trenton's Stop Overthinking offers a more self-help-oriented companion.
- Who should read this?
- Don't Believe Everything You Think is designed for general readers who want a structured, research-backed introduction to the ways human cognition goes wrong — and what to do about it. Its chapter-by-chapter breakdown of distinct mistakes makes it particularly well-suited to classroom use or structured self-study in courses on critical thinking, decision-making, or media literacy. Readers who encounter the book through those curricula will find its organization maps naturally to academic frameworks. Those seeking a more narrative-driven or personality-led approach may find the methodical format less engaging, but for anyone who values clarity, documented examples, and a practical framework for evaluating beliefs, Kida's work is a strong fit.
- About Thomas E. Kida
- Thomas E. Kida is a professor in the Isenberg School of Management at the University of Massachusetts at Amherst, where he specializes in critical thinking and decision-making. He has authored many articles on the subject and is best known for Don't Believe Everything You Think, which examines six fundamental mistakes people make in thinking and advocates for skepticism and scientific reason.
- What are the main themes?
- The book's central theme is that human cognitive machinery — the same mental shortcuts that help people navigate everyday life — systematically leads them astray on questions of fact, risk, and judgment. Kida explores this through six named categories of error: misperceiving patterns and associations, overconfident prediction, confirmation bias, the tendency to over-simplify, and the distorting effects of faulty memory and social influence. A running sub-theme is the tension between intuitive, anecdote-based reasoning and the discipline of scientific thinking, with dedicated chapters on pseudoscientific belief ('Weird Beliefs and Pseudoscientific Thinking') and on scientific reasoning as a practical corrective ('Thinking Like a Scientist'). Throughout, Kida connects these cognitive errors to real-world consequences in health, public policy, and personal decision-making.
- Is this a good book club pick?
- Don't Believe Everything You Think lends itself well to structured group discussion: its six self-contained chapters can be read and discussed one at a time, and each mistake Kida identifies naturally prompts readers to surface personal examples from their own experience. The book's coverage of confirmation bias, social influence, and groupthink gives groups particularly rich material for disagreement and self-examination. The dry writing style noted by some reviewers may dampen enthusiasm in groups that prefer more narrative-driven reads, but for a book club with an interest in psychology, decision-making, or media literacy, it offers a clear framework and a strong bibliography for those who want to dig deeper.
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Age & Reading Level
Recommended age
Adult
Reading level
Adult
Skip if you're looking for a narrative-driven, personality-led exploration of cognitive bias rather than a methodical, chapter-by-chapter framework.
Editorial Review
Thomas E. Kida's Don't Believe Everything You Think: The 6 Basic Mistakes We Make in Thinking, published by Prometheus Books in 2006, is a popular-science non-fiction work that systematically examines the core cognitive errors behind faulty beliefs and poor decisions, using real-life examples and research to make the material accessible and actionable for general readers.
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