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Cover of Behave : The Biology of Humans at Our Best and Worst by Robert M. Sapolsky

Book · Non-fiction, memoir and self-help

Behave : The Biology of Humans at Our Best and Worst

by Robert M. Sapolsky

Page count, estimated reading time and reading quiz: everything to know before you start Behave : The Biology of Humans at Our Best and Worst, and the Vread challenge to get to the end.

Pages
1,063
Reading time
≈ 19 h 20 min
Checkpoints
30
Genre
Non-fiction
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How long does it take to read Behave : The Biology of Humans at Our Best and Worst?

At 1,063 pages, Behave : The Biology of Humans at Our Best and Worst is a doorstopper. Expect about 19 hours 20 minutes of reading to finish it, based on 250 words per page and an average reading speed of 230 words per minute. A fast reader will go quicker; a careful read (or reading in a second language) will take longer.

At 30 minutes a day, that is about 39 days of reading. At the median pace of Vread readers, 72 pages per reading day, it takes 15 reading days. For a book of this length (600 pages or more), Vread readers who finish it take a median of 6.4 days between the first and the last checkpoint (Vread Reading Barometer 2026).

Reading days to finish it
30 minutes a day39 days
Vread median pace (72 pp./day)15 days

Estimates; see the method at the bottom of the page.

Prove you read it

The Vread challenge: 30 checkpoints

  1. Checkpoint 1, page 35
  2. Checkpoint 2, page 71
  3. Checkpoint 3, page 106
  4. Checkpoint 4, page 142
  5. Checkpoint 5, page 177
  6. Checkpoint 6, page 213
  7. Checkpoint 7, page 248
  8. Checkpoint 8, page 283
  9. Checkpoint 9, page 319
  10. Checkpoint 10, page 354
  11. Checkpoint 11, page 390
  12. Checkpoint 12, page 425
  13. Checkpoint 13, page 461
  14. Checkpoint 14, page 496
  15. Checkpoint 15, page 532
  16. Checkpoint 16, page 567
  17. Checkpoint 17, page 602
  18. Checkpoint 18, page 638
  19. Checkpoint 19, page 673
  20. Checkpoint 20, page 709
  21. Checkpoint 21, page 744
  22. Checkpoint 22, page 780
  23. Checkpoint 23, page 815
  24. Checkpoint 24, page 850
  25. Checkpoint 25, page 886
  26. Checkpoint 26, page 921
  27. Checkpoint 27, page 957
  28. Checkpoint 28, page 992
  29. Checkpoint 29, page 1028
  30. Checkpoint 30, page 1063

In Vread, Behave : The Biology of Humans at Our Best and Worst is split into 30 checkpoints, one every 35 pages or so. At each checkpoint, a question covers the passage you have just read: a correct answer validates the step, and your progress moves forward like a training plan.

The challenge: validate all 30 checkpoints through to the last page. No giant quiz at the end, no summary to copy out: short questions along the way that prove the book was actually read. It also works as a reading quiz to check your understanding before a test.

Also available in French on Vread.

Illustrative example

Checkpoint 1/30pp. 1–35

What a checkpoint looks like

A short, precise question about the pages you have just read: a character, a place, a choice.

The answer is in the text: reply in the app.

This is not a question from Behave : The Biology of Humans at Our Best and Worst: to avoid spoilers, the real questions stay in the app.

Answer in the app, one checkpoint at a time.

Summary, quiz, reviews: frequently asked questions

How many pages is Behave : The Biology of Humans at Our Best and Worst?
The edition listed on Vread has 1,063 pages. The exact count varies by edition (paperback, hardback, ebook).
How long does it take to read Behave : The Biology of Humans at Our Best and Worst?
About 19 hours 20 minutes of reading, or 39 days at 30 minutes a day.
Is there a quiz on Behave : The Biology of Humans at Our Best and Worst?
Yes: the Vread app has 30 reading questions on Behave : The Biology of Humans at Our Best and Worst, one per checkpoint, unlocked as you read.
Where can I find a summary of Behave : The Biology of Humans at Our Best and Worst?
Vread does not publish summaries: the app supports reading the book itself, part by part. Checkpoint questions cover what you have just read, which makes them a good way to check you did not miss anything.

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Add the book to your library, read at your own pace in whatever format you use, and validate each checkpoint. Vread is free on iPhone and Android.

Take the challenge

Written by Vread from its catalogue data (page count of the listed edition, checkpoints, ratings aggregated from 10 ratings). No summary or publisher text is reproduced. Reading times are estimates; see the method in the Vread Reading Barometer (in French).