19 h 0 minAudiobook13 minSummaryRead it, hear it, the 15-minute summary, and print and large print at cost
Audiobook edition · 19 h 0 minPaperback · 6 × 9 in · printing soonHardcover · 6 × 9 in · printing soonAbout this book
What do you really mean when you say something is probable?
In The Logic of Chance, John Venn takes a familiar word and asks what holds it up. Does probability describe how strongly you believe something, or a pattern in events? His answer starts with a series: a long run of similar events, rather than one isolated case.
Venn follows that idea into statistics, insurance, science and everyday judgment. He explores how unpredictable outcomes can form steady patterns, and where those patterns stop being reliable. Most of his argument unfolds in words, not mathematics, as he challenges rival views and asks how evidence should guide a decision.
What you’ll discover
- Patterns beneath uncertain outcomes Explore how a steady series can emerge from individual events that remain unpredictable.
- Belief put to the test Follow Venn’s challenge to the idea that probability simply measures how strongly someone believes.
- When statistics deserve trust See why the stability of a series matters before you rely on its patterns.
- The leap to one case Consider the judgment involved when a long run must guide one particular decision.
- Witnesses and uncertain evidence Examine attempts to weigh testimony against the apparent unlikelihood of what a witness reports.
Who will love it
This book suits readers who enjoy philosophy, logic and the history of ideas, and anyone curious about what odds, averages and statistics really mean.
What’s inside
The key ideas, in the 15-minute summary
- Probability begins with series, not single events
- Large numbers shrink relative swings but not absolute ones
- The Petersburg puzzle shows why long series matter
- No single bell curve fits every group
- Stable groups come from steady causes and many small ones
- Chance worked out by reason still rests on experience
- Probability measures long-run frequency, not strength of belief
- The rules are simple, but inverse problems need assumptions
- Choose the group with care when judging one case
- Judge strange claims by evidence, not by wonder
Formats and delivery
- eBook
- On your phone, tablet or computer, once the book texts are online.
- Large-print eBook
- The same book in bigger, clearer type, once the book texts are online.
- Audiobook
- Read by Lucas Linden, complete. It opens once the recording is online.
- 15-minute summary
- The key ideas in about 13 minutes, to read today.
- Paperback
- 6 × 9 in. Printing soon: leave your email under Paperback or Hardcover above.
- Hardcover
- 6 × 9 in. Printing soon: leave your email under Paperback or Hardcover above.
- Large print paperback
- 8.5 × 11 in. Printing soon: leave your email under Paperback or Hardcover above.
- Large print hardcover
- 8.5 × 11 in. Printing soon: leave your email under Paperback or Hardcover above.
Every printed copy is made when you order it and shipped worldwide; shipping is shown at checkout. The eBook and the audiobook open when the book texts go online.
How it works
- Start free. Nothing to pay today; the eBook of this book is yours to keep.
- Read, listen and print. 200,000+ classics as eBook, large-print eBook, audiobook and 15-minute summary, and any book printed at cost as a paperback, hardcover or large print, 5 accounts for the price of one.
- We remind you first. Free for 3 months, and we email you 7 days before your first payment. Then USD 0.14 a day in your first year on the yearly plan and USD 0.27 a day after, or USD 0.66 a day on the monthly plan. Cancel online in two clicks.
Bought on its own? Every eBook, audiobook and printed book you buy without the plan carries our 30-day money-back guarantee.
The Logic of Chance
by John Venn · 1866
A single coin toss defies prediction, yet a thousand tosses fall into order, and Venn asks why that matters.
Challenging10–20 hours to readEnglish
Excellent
Free for 3 months · starts right away, on any device
Read free3 months free · cancel anytimeFree for 3 months, then USD 0.14 a dayCancel anytimeHow it works
- Read or listen
- Print and large print at cost
- 5 accounts for the price of one
In short
What can a coin toss teach you about life, insurance, or the weight of evidence? John Venn answers in The Logic of Chance.
The Logic of Chance at a glance
- Reading time
- About 10 h 20 min8 h 15 min fast, 12 h 20 min slow
- Length
- 147,900 words
- Library level
- Challenging long sentences, a rich vocabulary
- First published
- 1866by John Venn
Reading time at 238 words a minute (fast 300, slow 200). How long the classics take to read · Updated
From the 15-minute summary · Key idea 1
Probability begins with series, not single events
Venn begins with a special kind of group. Think of a long run of coin tosses, or the lives of everyone born in one town in one year. Each single case is uncertain, yet the whole group behaves in a steady way. Venn calls such a group a series, and the whole science rests on it.
A few tosses of a penny look like chaos. Toss it a thousand times and heads and tails come out nearly equal. Human lives work the same way. No one can say how long one child will live, yet the average span of a large group becomes almost as sure as sunrise.
Free for 3 months · Cancel anytime
You looked at
Which edition is right for me
- 15-minute summary
- The key ideas of the whole book in about 13 minutes. A good first look, or a refresher.
Details
- First published
- 1866
- Language
- English
- Level
- Challenging
Cite this edition
Venn, John. The Logic of Chance. Library of Alexandria, 2026, libraryofalexandria.com/products/the-logic-of-chance.
Venn, J. (2026). The logic of chance. Library of Alexandria. https://libraryofalexandria.com/products/the-logic-of-chance (Original work published 1866)
Venn, John. The Logic of Chance. Library of Alexandria, 2026. https://libraryofalexandria.com/products/the-logic-of-chance.
@book{venn2026logic,
author = {Venn, John},
title = {The Logic of Chance},
publisher = {Library of Alexandria},
year = {2026},
url = {https://libraryofalexandria.com/products/the-logic-of-chance},
note = {First published 1866}
}
Free gifts
USD 580 in free gifts when you start
Every book in every format and in 25 languages, 5 accounts for the price of one. Nothing to pay today.
- 200,000+ classic eBooksIn 25 languages, side by side
USD 170FREE - Every audiobookIn 25 languages, any device
USD 120FREE - 15-minute summariesRead or listen, in 25 languages
USD 60FREE - Print at cost, no markupPaperback, hardcover, large print
USD 60FREE - 5 accounts for the price of oneA shelf for everyone at home
USD 170FREE - A part in rebuilding the libraryNew languages and books for all
FREE
Questions about The Logic of Chance
Can I read it free?
Yes. The first key idea of the 15-minute summary is free with no sign-up. Start free and the whole book is yours for 3 months, with the eBook to keep, plus 200,000+ more classics and any book printed at cost as a paperback, hardcover or large print. Nothing to pay today: we email you 7 days before your first payment, and you can cancel online in two clicks.
Can I buy the printed book?
Soon. The paperback, hardcover and large print editions are being prepared. Choose Paperback or Hardcover above, leave your email, and we tell you the day you can order it, printed at cost.
How many accounts do I get?
Five, for the price of one: you and 4 more people, each with their own login, shelf and their own place in every book.
Can I cancel anytime?
Yes. Cancel online in two clicks at any time and nothing more is charged. Nothing is charged in your first 3 months, and we email you 7 days before your first payment.
What is The Logic of Chance about?
It is a study of what probability means and why it works. Venn argues that probability describes the long-run proportions in series of events, such as coin tosses or lifespans, and shows how it should be used to reason about individual cases.
What is a series in Venn's book?
A series is a long run of similar events or things whose individual members are unpredictable but whose overall proportions settle toward a steady value. Coin tosses and the lives of a large group of people are his main examples.
Does The Logic of Chance need mathematics?
Venn wrote it for readers of philosophy and says only simple arithmetic is needed. A few formulas appear, but the argument is carried by plain prose, everyday examples such as coins, dice, insurance and witnesses, and clear step-by-step reasoning.
The author
John Venn
1834–1923 · British logician and philosopher
John Venn was a British logician and philosopher, born in Hull in 1834. He lived and worked in Cambridge, teaching at Gonville and Caius College. He wrote The Logic of Chance (1866), Symbolic Logic (1881), and The Principles of Empirical Logic (1889). He died in Cambridge in 1923.
More like this
Our mission
The library burned once. We are building it back.
Every great book, in every language and every format, for every family. Every plan helps pay for new languages, new audiobooks and books for readers who have never had them. Join the movement.
Read our story- Every language25 languages today, side by side, and more every year
- No wastePrinted on demand: no warehouses, no unsold stock, no pulped copies
- For everyonePaperback, hardcover and large print at the cost of printing
