Communicating Sequential Processes
Communicating Sequential Processes by Tony Hoareby C. A. R. Hoare
Ranked 7 of 7 computer science books by recommenders
People recommend it as a simple, foundational text on designing reliable concurrent systems, and as an accessible read for newcomers to computer science research.
People recommend it as a simple, foundational text on designing reliable concurrent systems, and as an accessible read for newcomers to computer science research.
4 people gave an opinion
- recommend it
- 4
- criticize it
- 0
- approval share
- 100%
Recommended in 2 of 13 months
- November 2025: not recommended
- December 2025: not recommended
- January 2026: not recommended
- February 2026: recommended
- March 2026: recommended
- April 2026: not recommended
- May 2026: not recommended
- June 2026: not recommended
- July 2026: not recommended
- August 2026: not recommended
- September 2026: not recommended
- October 2026: not recommended
- November 2026: not recommended (month in progress)
Why it doesn’t carry the badge
- 4 people recommend itNeeds 10 or more, not met.
- Nobody criticizes itNeeds 2 to 1 or better, met.
- Recommended in 2 of 13 monthsNeeds 4 or more, not met.
The same three rules apply to every product, and the badge can’t be bought. How the badge works
What people say about it
The reasons people give, with the number of comments that give each one. Open a reason to read what they said.
Why people recommend it
Each mark is one comment
Foundation for reliable concurrent system design
“It seemed to be a foundational piece for designing reliable systems that incorporate concurrency in them.”
Comment from 10 Mar 2026 in “Turing Award winner and former Oxford professor Tony Hoare passed away” “cpsbook.pdf too from Hoare on concurrent programming and threads”
Comment from 9 Feb 2026 in “Nobody knows how the whole system works” Simple, expandable, influential language constructs
“I really enjoyed it's simplicity, expandability, and was always amazed that it inspired and influenced language constructs”
Comment from 10 Mar 2026 in “Turing Award winner and former Oxford professor Tony Hoare passed away” Good read for new researchers
“a great read when I was new to computer science research”
Comment from 10 Mar 2026 in “Turing Award winner and former Oxford professor Tony Hoare passed away”
Other computer science books people recommend
The four most recommended other computer science books, with the same counts for each, so you can compare like for like. The tick on each bar marks the 2 to 1 line the badge needs.
| Product | Recommend | Criticize | Approval | Months | Owned | Badge |
|---|---|---|---|---|---|---|
| The Garbage Collection Handbookby Jones, Richard | 16 | 5 | 76% | 4 | — | Approved |
| Beej's Guide to Learning Computer Scienceby Brian Hall | 15 | 2 | 88% | 1 | — | — |
| Code: The Hidden Language of Computer Hardware and Softwareby Charles Petzold | 12 | 0 | 100% | 8 | — | Approved |
| The Unix-Haters Handbookby Simson Garfinkel | 8 | 1 | 89% | 4 | — | — |
| Communicating Sequential Processesby C. A. R. HoareThis page | 4 | 0 | 100% | 2 | — | — |
What people said
All 4 comments that mention it, newest first. Each links to the original comment.
“a great read when I was new to computer science research”
“It seemed to be a foundational piece for designing reliable systems that incorporate concurrency in them.”
“I really enjoyed it's simplicity, expandability, and was always amazed that it inspired and influenced language constructs”
“cpsbook.pdf too from Hoare on concurrent programming and threads”
Counts come from 1,795,640 Hacker News comments, November 2025 to November 2026. How we count. Report a mistake.