If you liked that, then you'll love Visual Group Theory[1]. The first two chapters are online, and I believe free and legal to download [2]. [1] From the publi

If you liked that, then you'll love Visual Group Theory[1]. The first two chapters are online, and I believe free and legal to download [2]. [1] From the publisher's site: https://www.maa.org/press/books/visual-group-theory https://www.maa.org/press/books/visual-group-theory [2] http://www.mathcs.emory.edu/~dzb/teaching/421Fall2014/VGT-Ch-1-2.pdf http://www.mathcs.emory.edu/~dzb/teaching/421Fall2014/VGT-Ch... Previously on HN: https://news.ycombinator.com/item?id=11745486 https://news.ycombinator.com/item?id=11745486