The Intelligent Investor by Benjamin Graham — book cover

The Intelligent Investor

Benjamin Graham · 1949

Benjamin Graham's timeless playbook for the patient investor: stop guessing where prices are headed, buy good businesses for meaningfully less than they're worth, and let a built-in margin of safety protect you from the market's mood swings and your own.

10 min read · 8 chapters · Money

Why it’s on the shelf

The definitive value-investing bible championing margin of safety and discipline.

Three of the ideas you’ll keep

The Clif summary of The Intelligent Investor pulls out 7 insights. Here are the first three.

  1. Separate investing from speculating: an investment promises safety of principal and an adequate return only after thorough analysis. If you can't justify a purchase with data and reasoning, you're speculating, no matter how confident you feel.
  2. Treat the market as 'Mr. Market', a manic-depressive business partner who quotes you a price every day. You're free to ignore him or exploit him, but never let his mood set your sense of value.
  3. Demand a margin of safety on every purchase: pay a price comfortably below your estimate of intrinsic value so that even if you're wrong, you don't lose much. This single idea is Graham's whole philosophy in three words.

The other 4 — and the full 10-minute summary — are in the app.

What’s inside: 8 chapters

The whole summary runs about 10 minutes, read or listened to.

  1. Investment vs. Speculation: Know Which Game You're Playing
  2. Mr. Market: Your Moody Business Partner
  3. Defensive vs. Enterprising: Pick Your Lane Honestly
  4. The 50/50 Rule: Let Allocation Do the Work
  5. Stock Selection for the Defensive Investor
  6. The Enterprising Investor: Where to Hunt for Bargains
  7. Your Worst Enemy Is the Person in the Mirror
  8. Margin of Safety: The Three Words That Matter Most

Finish The Intelligent Investor tonight.

Read or listen to the full summary in about 10 minutes, then keep the ideas with a minute of review a day. Start with the 2-minute quiz — no card required.