Perceptual effects
Where the eyes (or attention) lie before the brain even gets a vote.
Bottom-up illusions: the things you literally see, hear, or notice that don't correspond to what's out there. They're the shortest leg of the chain from world to belief, and that makes them harder to notice — there's no obvious "judgment" step to second-guess.
The other 7 types of glitch.
Systematic errors in judgment, baked into how the brain weighs evidence.
How memory rewrites itself — distortions, false confidence, fading detail.
What other people's presence, opinions, and signals do to your thinking.
Patterns that hijack a clean decision into a costly one.
Glitches in how you think about your own thinking.
Argument moves that look like reasoning but skip a step.
Mental shortcuts — fast, often right, occasionally catastrophic.
Train against all 231 of them.
The reference is free. Buyers unlock the interactive training — Spot-the-Bias Quiz unlimited, Swipe Deck with spaced repetition, My Blindspots, Decision Pre-Flight, the Field Guide e-book, Cheat Sheets, and the Printable Deck. $29.50$59.