// Book comparison
Think Again vs Why We Sleep
Which should you read? A side-by-side comparison of Think Again by Adam Grant and Why We Sleep by Matthew Walker.
Think Again
by Adam Grant
★ 4.9/5
Why We Sleep
by Matthew Walker
★ 4.9/5
At a glance
| Think Again | Why We Sleep | |
|---|---|---|
| Rating | ★ 4.9/5 | ★ 4.9/5 |
| Pages | 320 | 368 |
| Reading time | ~8.0 h | ~9.2 h |
| Published | 2021 | 2017 |
| Author | Adam Grant | Matthew Walker |
| Category | Leadership | Personal Effectiveness |
| Publisher | Viking | Scribner |
Choose Think Again if…
- → You're interested in leadership.
- → You want the higher-rated book (4.9/5).
- → You prefer a shorter read (~8.0 hours).
- → You want the more recent perspective (2021).
Choose Why We Sleep if…
- → You're interested in personal effectiveness.
Key takeaways — Think Again
- ✓ Adopt a Scientist Mindset by treating your business strategies as hypotheses that require constant testing and validation against new market data and feedback.
- ✓ Cultivate Confident Humility, acknowledging the limits of your knowledge to remain open to better ideas and more accurate strategic insights from your workforce.
- ✓ Foster a Rethinking Culture within your team by rewarding the 'courage to be wrong' and encouraging the regular questioning of established organizational best practices.
Key takeaways — Why We Sleep
- ✓ Acknowledge Sleep as your Primary Performance Tool, recognizing that chronic sleep deprivation systematically erodes your IQ, your strategic foresight, and your emotional intelligence.
- ✓ Protect your REM Sleep for Creative Problem-Solving, ensuring that your 'Rest Architecture' allows for the deep dreaming required to integrate complex market information into original insights.
- ✓ Eliminate the 'Badge of Honor' for Sleep Deprivation within your culture, recognizing that a tired workforce is a statistically more error-prone and less innovative workforce.
The verdict
If you want the higher-rated, shorter read, start with Think Again. If you specifically need personal effectiveness, Why We Sleep is the better fit. Both summaries are free — no signup required.
❓ FAQ
Is Think Again or Why We Sleep better? +
Think Again has the higher reader rating (4.9/5 vs 4.9/5), but "better" depends on your goal. Think Again focuses on leadership, while Why We Sleep focuses on personal effectiveness. See the verdict below.
Which is shorter, Think Again or Why We Sleep? +
Think Again is shorter (320 pages, ~8.0 hours) compared to Why We Sleep (368 pages, ~9.2 hours).
Should I read Think Again or Why We Sleep first? +
If you want the quicker, higher-rated read, start with Think Again. Otherwise read whichever matches your current goal — both summaries are free on BookHubs.