The library
Resources
Articles, book recommendations, online courses, podcasts, and external links to support your critical thinking journey.
The resources collected here are the ones we actually use and recommend, not an exhaustive list of everything written on critical thinking. Each entry has been chosen because it covers material the exercises on this site cannot fully treat, because it is written at a level that motivated learners can engage with, and because the author or instructor has earned credibility through sustained work in the field. We update the collection periodically as new material appears and as our sense of what is most useful evolves. If you have a recommendation that meets these criteria, the email link at the bottom of the page goes to the editors.
The books section is the deepest part of the library. The recommended titles span beginner introductions (Carl Sagan's 'The Demon-Haunted World,' Mortimer Adler's 'How to Read a Book'), foundational texts in cognitive science (Kahneman's 'Thinking, Fast and Slow,' Stanovich's 'The Robot's Rebellion'), specialized treatments of fallacies and argumentation (Hurley's textbook, Walton's argumentation schemes), and contemporary work on calibrated reasoning and forecasting (Tetlock's 'Superforecasting,' Duke's 'Thinking in Bets'). Each entry includes a brief description and difficulty level so you can pick what fits your current background. Books are the highest-leverage investment in this list — a focused twenty hours with a strong book on critical thinking produces more durable improvement than dozens of scattered articles.
The courses, podcasts, and external resources sections supplement the books with material in different formats. Courses are useful when you want a structured curriculum with assessments and a defined endpoint; the free Coursera and Khan Academy options are particularly well-regarded. Podcasts are good for absorbing reasoning content during commutes or exercise — Tetlock's 'Conversations,' Duke's 'On the Mind,' and the Effective Altruism podcasts offer some of the highest-quality material in this format. External resources cover specialized topics that a general site cannot treat in depth: Stanford's fact-checker training materials, the Calibrated Forecasting site for prediction practice, the Less Wrong sequences on rationality. Use each format for what it does best rather than trying to read everything; depth in a few well-chosen sources beats breadth across many shallow ones.
Articles & Guides
In-depth explorations
Long-reads from our editorial team.
The Fundamentals of Logical Reasoning
A deep dive into deductive and inductive reasoning, covering how to construct valid arguments, recognize invalid ones, and apply logical principles to everyday decisions — from evaluating sales pitches to choosing medical treatments.
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A Field Guide to Logical Fallacies
Move beyond simply naming fallacies. This guide teaches you to detect fallacious reasoning in real contexts — political debates, advertising, social media arguments, and workplace discussions — with 25+ examples drawn from contemporary discourse.
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How to Evaluate Arguments Like a Philosopher
Master the Toulmin model of argumentation: identify claims, evidence, warrants, and rebuttals in any argument. Includes a step-by-step worked example analyzing a real op-ed, plus techniques for spotting hidden assumptions that make or break an argument.
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Surviving the Information Apocalypse
A practical playbook for navigating the modern information ecosystem. Learn lateral reading (the technique professional fact-checkers use), the SIFT method for evaluating online claims, and how to recognize the six most common misinformation formats spreading on social media today.
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Your Brain Is Lying to You: A Guide to Cognitive Biases
An engaging tour of the 12 cognitive biases most likely to derail your thinking, drawn from the research of Kahneman, Tversky, and Gigerenzer. Each bias comes with real-world examples of costly errors it has caused and evidence-based debiasing strategies you can start using today.
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Scientific Thinking for Non-Scientists
You don't need a PhD to think like a scientist. This guide translates the core principles — hypothesis testing, control variables, replication, and Bayesian updating — into tools you can apply to personal health decisions, financial planning, and evaluating news headlines.
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The Art of Asking Questions That Actually Matter
Questions are the engine of critical thinking, but most of us ask superficial ones. Drawing on the Socratic method, journalistic interviewing techniques, and Toyota's 'Five Whys,' this guide teaches you to ask questions that cut through surface noise to reveal root causes and hidden assumptions.
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Why Your Gut Is Bad at Probability (And What to Do About It)
From the Monty Hall problem to medical test accuracy, our probability intuitions are spectacularly unreliable. This guide explains why — drawing on evolutionary psychology and prospect theory — and teaches you practical mental models (reference classes, base rates, expected value) for reasoning about uncertainty without doing complex math.
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Media Literacy in Practice: A Step-by-Step Workflow
When you encounter a suspicious claim online, what exactly should you do? This guide provides a concrete 5-step workflow — from initial credibility assessment to source triangulation — with worked examples using real viral claims that turned out to be misleading or false.
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Creative Problem Solving: Structured Techniques That Actually Work
Creativity isn't magic — it's a skill with learnable techniques. Explore SCAMPER, lateral thinking, constraint removal, and analogical transfer, each illustrated with famous innovations (Velcro, Post-it Notes, Airbnb's pivot) that resulted from deliberate creative methodology rather than lucky accidents.
Read articleRecommended Books
Essential reading for critical thinkers
Thinking, Fast and Slow
by Daniel Kahneman
The Nobel laureate's masterwork on the two systems driving human thought: fast intuition (System 1) and slow deliberation (System 2). Kahneman reveals how systematic biases arise from our reliance on mental shortcuts and how awareness — though not a cure — is the first step toward better judgment. Essential reading for anyone who makes decisions under uncertainty (i.e., everyone).
The Art of Thinking Clearly
by Rolf Dobelli
A highly readable catalog of 99 cognitive biases and reasoning errors, each explained in 2-3 pages with vivid examples from business, history, and daily life. Ideal as a quick reference you return to repeatedly — like a field guide to the ways your own brain misleads you.
Critical Thinking: A Concise Guide
by Tracy Bowell & Gary Kemp
The most widely used university textbook on critical thinking, now in its 5th edition. Covers argument identification, analysis, evaluation, and construction with academic rigor but accessible language. Includes extensive exercises with answers — essentially a self-paced course.
The Demon-Haunted World
by Carl Sagan
Sagan's passionate, eloquent case for science and skepticism as the best tools humanity has against superstition, pseudoscience, and manipulation. His 'baloney detection kit' — a practical checklist for evaluating extraordinary claims — remains one of the most widely cited frameworks for critical thinking 30 years after publication.
Predictably Irrational
by Dan Ariely
Through clever experiments, behavioral economist Ariely demonstrates that our irrational behaviors are not random but systematic and predictable. From how we perceive prices to why we procrastinate, each chapter reveals a specific mechanism and offers concrete strategies for making better choices despite our biases.
Superforecasting: The Art and Science of Prediction
by Philip Tetlock & Dan Gardner
Based on a massive government-sponsored forecasting tournament, Tetlock identifies what makes some people remarkably good at predicting future events. The answer isn't expertise or intelligence alone — it's specific cognitive habits: breaking problems into components, seeking diverse information, updating beliefs incrementally, and tracking accuracy honestly.
How to Lie with Statistics
by Darrell Huff
First published in 1954 and more relevant than ever. This short, witty classic exposes every trick used to mislead with data: cherry-picked samples, misleading graphs, ambiguous averages, and correlation-as-causation sleights. After reading it, you'll never look at a bar chart or poll result the same way again.
The Scout Mindset
by Julia Galef
Galef distinguishes two cognitive stances: the 'soldier mindset' (defending existing beliefs) and the 'scout mindset' (genuinely trying to see reality clearly). Drawing on research and vivid historical examples, she shows that intellectual honesty isn't just morally admirable — it's practically advantageous, and she provides concrete techniques for cultivating it.
Mistakes Were Made (But Not by Me)
by Carol Tavris & Elliot Aronson
A revealing exploration of cognitive dissonance — the mental discomfort of holding contradictory beliefs — and how self-justification leads people to double down on mistakes rather than correct them. With case studies from politics, law, medicine, and relationships, it explains why smart people do foolish things and refuse to acknowledge it.
A Rulebook for Arguments
by Anthony Weston
At just 100 pages, this is the most efficient introduction to constructing and evaluating arguments ever written. Each of its 45 rules is stated clearly with examples. Keep it on your desk and consult it before writing an essay, preparing a presentation, or entering a debate. A universal reference that improves with each re-reading.
Factfulness
by Hans Rosling
A data-driven guide to understanding how the world actually is, rather than how we feel it to be. Rosling demonstrates that most people are dramatically wrong about global trends and explains the cognitive biases that lead us astray. Essential for thinking clearly about statistics, progress, and global challenges.
Calling Bullshit
by Carl Bergstrom & Jevin West
Written by University of Washington researchers, this practical guide teaches you to recognize and critique bullshit — misleading claims backed by manipulated data or flawed reasoning. With real-world examples from marketing, politics, and science, it's an essential field manual for the information age.
Influence: The Psychology of Persuasion
by Robert Cialdini
The foundational text on persuasion and social influence. Cialdini identifies six universal principles that guide human behavior: reciprocity, commitment, social proof, authority, liking, and scarcity. Understanding these weapons of influence helps you recognize manipulation and make better decisions.
Being Logical
by D.Q. McInerny
A clear, accessible introduction to logical thinking that bridges philosophy and practical reasoning. McInerny covers the foundations of logic, types of arguments, and common fallacies with elegant simplicity and useful examples that apply to everyday life.
Asking the Right Questions
by M. Neil Browne & Stuart Keeley
Now in its 13th edition, this bestseller teaches the essential skill of asking critical questions. The book guides you through 10 key questions to ask about any argument or claim, with extensive practice exercises and real-world applications for evaluating information.
Online Courses
Free and affordable courses on critical thinking
Introduction to Logic
Stanford University
Covers propositional logic, first-order logic, and proof techniques with auto-graded exercises. A rigorous course on formal reasoning with real-world applications. Ideal for building strong foundations in logical thinking.
Critical Thinking & Reasoning
University of Pennsylvania
Explores the fundamentals of critical thinking: argument analysis, fallacy identification, evidence evaluation, and reasoning in uncertain conditions. Includes case studies and practical exercises for real-world application.
Logic and Philosophy of Science
Various Experts
Free video lessons covering formal logic, philosophy of science, the scientific method, and how to evaluate scientific claims. Khan Academy's patient, visual approach makes complex concepts accessible.
Cognitive Biases and Decision Making
University of Michigan
Explores cognitive biases, heuristics, and decision-making frameworks. Learn how our minds systematically mislead us and apply evidence-based strategies to make better choices in personal and professional contexts.
Rhetoric and Argumentation
Rutgers University
Deep dive into argument construction, persuasion techniques, and rhetoric. Learn the principles of effective argumentation, how to evaluate claims, and recognize manipulative rhetorical strategies.
Podcasts
Audio deep-dives into critical thinking and reasoning
Rationally Speaking
Hosted by Massimo Pigliucci & Julia Galef
An in-depth exploration of rationality, epistemology, and critical thinking through conversations with experts. Episodes cover cognitive biases, logical reasoning, scientific method, and how to evaluate evidence in complex domains.
You Are Not So Smart
Hosted by David McRaney
Each episode explores a specific cognitive bias, logical fallacy, or reasoning error drawn from psychology research. McRaney interviews experts and provides practical insights into how these biases affect decision-making and belief formation.
The Skeptics' Guide to the Universe
Hosted by Steve Novella & Rogues
A weekly podcast dedicated to science, critical thinking, and skepticism. The host and his panel discuss recent scientific news, debunk pseudoscience, and explore the principles of scientific reasoning and evidence evaluation.
Philosophy Bites
Hosted by Nigel Warburton
Short (15-minute) episodes exploring major philosophical concepts relevant to critical thinking: logic, epistemology, ethics, and reasoning. Perfect for learning philosophy without long-form commitments. Each episode features a different philosopher or expert.
Hidden Brain
Hosted by Shankar Vedantam
NPR's podcast exploring the unconscious patterns that drive human behavior. Episodes reveal cognitive biases, decision-making shortcuts, and the psychology behind everyday choices — essential for understanding how our minds can mislead us.
Very Bad Wizards
Hosted by Tamler Sommers & David Pizarro
A philosophy and psychology podcast that tackles moral questions, reasoning, and the biases that shape our judgments. The hosts debate controversial topics with rigor and humor, modeling critical thinking and charitable argument analysis.
External Resources
Additional learning resources from around the web
Stanford Encyclopedia of Philosophy
The gold standard for philosophical reference. Peer-reviewed articles on logic, epistemology, philosophy of science, and reasoning — written by leading scholars but accessible to educated non-specialists. Start with the entries on 'Critical Thinking' and 'Informal Logic.'
The Fallacy Files
The most comprehensive fallacy taxonomy online. Each fallacy includes a formal definition, logical form, multiple examples, and links to related fallacies. The 'taxonomy' view lets you see how different fallacies are related to each other — invaluable for building systematic understanding.
Your Logical Fallacy Is
Beautifully designed visual guide to 24 common logical fallacies. Each fallacy gets a poster-quality illustration, a plain-language explanation, and a concrete example. Perfect for sharing with friends or students who are new to the topic.
Your Bias Is
The companion site to 'Your Logical Fallacy Is,' this covers 24 cognitive biases with the same accessible, visual approach. Each bias includes its definition, why it happens (the psychological mechanism), and practical advice for counteracting it.
LessWrong
A community blog and forum dedicated to the art of human rationality. The 'Sequences' (especially Eliezer Yudkowsky's 'Rationality: A-Z') provide a deep, rigorous exploration of cognitive biases, Bayesian reasoning, and decision theory. Best for readers who want to go far beyond the basics.
Critical Thinking Web (University of Hong Kong)
Free, comprehensive online tutorials covering logic, fallacies, cognitive biases, scientific reasoning, and argument analysis. Structured as a self-paced course with interactive exercises — essentially a free university-level critical thinking class.
Khan Academy: Logic and Critical Thinking
Free video lessons covering formal logic, informal reasoning, and statistical literacy. Khan Academy's strength is patient, step-by-step explanation of concepts — ideal if you prefer learning by watching and practicing alongside rather than reading.
Crash Course Philosophy
An engaging YouTube playlist introducing philosophical concepts including critical thinking, logic, epistemology, and reasoning. Hosted by Crash Course, known for making complex topics accessible and entertaining with vibrant visuals and clear explanations.
Rationally Speaking Podcast
Hosted by Massimo Pigliucci and Julia Galef, this podcast explores rationality, philosophy, and science through in-depth interviews with experts. Topics span cognitive biases, effective altruism, epistemology, and how to think better about important issues.
You Are Not So Smart
A blog and podcast by David McRaney exploring cognitive biases, logical fallacies, and the ways our brains mislead us. Each article uses real research to explain a specific bias with vivid examples, making complex psychology accessible and entertaining.
Effective Altruism Forum
A community discussion forum focused on how to do the most good with limited resources. Posts and discussions deeply explore decision-making, evidence evaluation, reasoning under uncertainty, and practical critical thinking applied to real-world problems.
Have a recommendation? Email the editors.