Book · Classics
The Moon is a Harsh Mistress
by Robert A. Heinlein
Page count, estimated reading time and reading quiz: everything to know before you start The Moon is a Harsh Mistress, and the Vread challenge to get to the end.
- Pages
- 429
- Reading time
- ≈ 7 h 50 min
- Checkpoints
- 12
- Genre
- Classic
Free on iPhone and Android.
How long does it take to read The Moon is a Harsh Mistress?
At 429 pages, The Moon is a Harsh Mistress is a fairly long book. Expect about 7 hours 50 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 16 days of reading. At the median pace of Vread readers, 72 pages per reading day, it takes 6 reading days. For a book of this length (400 to 599 pages), Vread readers who finish it take a median of 5.3 days between the first and the last checkpoint (Vread Reading Barometer 2026).
- 30 minutes a day16 days
- Vread median pace (72 pp./day)6 days
Estimates; see the method at the bottom of the page.
Prove you read it
The Vread challenge: 12 checkpoints
- Checkpoint 1, page 36
- Checkpoint 2, page 72
- Checkpoint 3, page 107
- Checkpoint 4, page 143
- Checkpoint 5, page 179
- Checkpoint 6, page 215
- Checkpoint 7, page 250
- Checkpoint 8, page 286
- Checkpoint 9, page 322
- Checkpoint 10, page 358
- Checkpoint 11, page 393
- Checkpoint 12, page 429
In Vread, The Moon is a Harsh Mistress is split into 12 checkpoints, one every 36 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 12 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 Moon is a Harsh Mistress: 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 Moon is a Harsh Mistress?
How long does it take to read The Moon is a Harsh Mistress?
Is there a quiz on The Moon is a Harsh Mistress?
Where can I find a summary of The Moon is a Harsh Mistress?
More by this author on Vread
Similar books: classics
Read The Moon is a Harsh Mistress 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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