
Book · Non-fiction, memoir and self-help
The Most Important Thing: Uncommon Sense for the Thoughtful Investor (Columbia Business School Publishing)
by Howard Marks
Page count, estimated reading time and reading quiz: everything to know before you start The Most Important Thing: Uncommon Sense for the Thoughtful Investor (Columbia Business School Publishing), and the Vread challenge to get to the end.
- Pages
- 224
- Reading time
- ≈ 4 h
- Checkpoints
- 7
- Genre
- Non-fiction
Free on iPhone and Android.
How long does it take to read The Most Important Thing: Uncommon Sense for the Thoughtful Investor (Columbia Business School Publishing)?
At 224 pages, The Most Important Thing: Uncommon Sense for the Thoughtful Investor (Columbia Business School Publishing) is a medium-length book. Expect about 4 hours 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 9 days of reading. At the median pace of Vread readers, 72 pages per reading day, it takes 4 reading days. For a book of this length (under 250 pages), Vread readers who finish it take a median of 4 days between the first and the last checkpoint (Vread Reading Barometer 2026).
- 30 minutes a day9 days
- Vread median pace (72 pp./day)4 days
Estimates; see the method at the bottom of the page.
Prove you read it
The Vread challenge: 7 checkpoints
- Checkpoint 1, page 32
- Checkpoint 2, page 64
- Checkpoint 3, page 96
- Checkpoint 4, page 128
- Checkpoint 5, page 160
- Checkpoint 6, page 192
- Checkpoint 7, page 224
In Vread, The Most Important Thing: Uncommon Sense for the Thoughtful Investor (Columbia Business School Publishing) is split into 7 checkpoints, one every 32 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 7 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
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 The Most Important Thing: Uncommon Sense for the Thoughtful Investor (Columbia Business School Publishing): 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 The Most Important Thing: Uncommon Sense for the Thoughtful Investor (Columbia Business School Publishing)?
How long does it take to read The Most Important Thing: Uncommon Sense for the Thoughtful Investor (Columbia Business School Publishing)?
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Where can I find a summary of The Most Important Thing: Uncommon Sense for the Thoughtful Investor (Columbia Business School Publishing)?
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Read The Most Important Thing: Uncommon Sense for the Thoughtful Investor (Columbia Business School Publishing) with Vread
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.
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