"How to deal with off-by-one errors"

reminds me of julia (the language): wanted to give it a try recently, until I read in their documentation: "In Julia, indexing of arrays, strings, etc. is 1-based not 0-based"… which made me wonder for a moment how many off-by-one errors may be caused by mismatches between different programming languages.

Look again, two different books are referred on one line, then a third lower down.

All of them in the comment. I forgot to do double-newlines, so the formatting is broken, and I can't edit the post any more.