# Knots Knotes by Justin Roberts

4 Hacker News commenters recommended Knots Knotes by Justin Roberts and 0 criticized it, November 2025 to November 2026. It was recommended in 1 of 13 months.

**Verdict:** A conversational introduction to knots and algebraic topology with many pictures, praised as a fabulous and wonderful set of notes.

## Why people recommend it

- Conversational intro with many pictures (1 comments): "a conversational intro to the subject with lots of pictures" ([source](https://news.ycombinator.com/item?id=47314273))
- Praised as a fabulous, wonderful set (2 comments): "This set of notes is a fabulous document." ([source](https://news.ycombinator.com/item?id=47353382)) "That's a wonderful set of Knotes." ([source](https://news.ycombinator.com/item?id=47321048))
- Revives feeling of first learning topology (1 comments): "Reading these has sparked that feeling I had when I first got into topology." ([source](https://news.ycombinator.com/item?id=47323353))

## Alternatives hackers recommend

- [Algorithms for Optimization by Kochenderfer and Wheeler](https://hackerapproved.com/p/algorithms-for-optimization.md): 10 recommend
- [Mathematics for Computer Science by Lehman, Leighton and Meyer](https://hackerapproved.com/p/mathematics-for-computer-science.md): 8 recommend
- [Numerical Recipes by Press et al.](https://hackerapproved.com/p/numerical-recipes.md): 7 recommend
- [Concrete Mathematics by Graham, Knuth and Patashnik](https://hackerapproved.com/p/concrete-mathematics.md): 7 recommend
- [Start Doing Graph Theory by Sam Burns](https://hackerapproved.com/p/start-doing-graph-theory.md): 7 recommend

## Where to get it

- [See price on Amazon](https://www.amazon.com/s?k=Knots+Knotes+by+Justin+Roberts&tag=hackerapprove-20) (affiliate link)

## Cite as

Hacker Approved, "Knots Knotes by Justin Roberts", https://hackerapproved.com/p/knots-knotes/ (counts from 1,795,640 Hacker News comments, November 2025 to November 2026).