// Book comparison

The Intelligent Investor vs Why We Sleep

Which should you read? A side-by-side comparison of The Intelligent Investor by Benjamin Graham and Why We Sleep by Matthew Walker.

At a glance

The Intelligent Investor Why We Sleep
Rating ★ 4.9/5 ★ 4.9/5
Pages 640 368
Reading time ~16.0 h ~9.2 h
Published 1949 2017
Author Benjamin Graham Matthew Walker
Category Finance & Investment Personal Effectiveness
Publisher Harper Business Scribner

Choose The Intelligent Investor if…

  • You're interested in finance & investment.
  • You want the higher-rated book (4.9/5).

Choose Why We Sleep if…

  • You're interested in personal effectiveness.
  • You prefer a shorter read (~9.2 hours).
  • You want the more recent perspective (2017).

Key takeaways — The Intelligent Investor

  • Apply the Margin of Safety principle to every investment, ensuring you buy assets at a significant discount to their intrinsic value to protect against downside risk.
  • Utilize Mr. Market to your advantage by buying when he is irrationally pessimistic and selling when he is overly optimistic, rather than following his emotional lead.
  • Adopt the mindset of a Defensive Investor, focusing on the systematic selection of high-quality, undervalued businesses and maintaining a balanced, diversified portfolio.
Read full The Intelligent Investor summary →

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.
Read full Why We Sleep summary →

The verdict

If you want the higher-rated, more acclaimed read, start with The Intelligent Investor. If you specifically need personal effectiveness, Why We Sleep is the better fit. Both summaries are free — no signup required.

❓ FAQ

Is The Intelligent Investor or Why We Sleep better? +

The Intelligent Investor has the higher reader rating (4.9/5 vs 4.9/5), but "better" depends on your goal. The Intelligent Investor focuses on finance & investment, while Why We Sleep focuses on personal effectiveness. See the verdict below.

Which is shorter, The Intelligent Investor or Why We Sleep? +

Why We Sleep is shorter (368 pages, ~9.2 hours) compared to The Intelligent Investor (640 pages, ~16.0 hours).

Should I read The Intelligent Investor or Why We Sleep first? +

If you want the quicker, higher-rated read, start with The Intelligent Investor. Otherwise read whichever matches your current goal — both summaries are free on BookHubs.