Finance ✦ Penny’s Take
Predictably Irrational
Dan Ariely · 2008
83/100
👍 Worth It
Predictably Irrational is one of the most readable and genuinely eye-opening books in the behavioural-economics genre — Ariely's experiments are memorable and his insights about how irrationally we all behave are hard to shake. One chapter addresses sexual arousal research frankly, so it is worth knowing that before handing it to younger teens. The subsequent research-integrity questions about Ariely are real but do not undermine the book's core findings, most of which are corroborated by independent work.
✦ Penny’s Take — this is The Review Group’s own editorial assessment. Penny’s analytical review line researched this book from real sources and scored it across the lenses shown below. It’s an honest first-party read — not a page-by-page personal one. The gold ✓ Penny Tested mark is reserved for books Penny reads cover to cover herself.
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Show the math
Verdict receipt0–100
Faith & family safety78
Substance / usefulness86
Craft & writing88
Originality84
Evidence & accuracy72
Hype vs delivers80
Age-fit76
👁 Human-eye gut-check86
Penny’s verdict83
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