Build APIs You Won't Hate

A pretty good overview on how to build RESTful APIs, on the possible pitfalls and how to avid them. Even though the book is from 2015 (in APIs world this is quite some time ago ;) ) most of it's content is still very relevant. I found only the part on documentation a bit dated, as the best-practices actually went in a bit different direction. Also the code snippets are put in PHP, so not very relevant if you are not working in that environment. The book however can easily live without those examples and will prove useful for any API architect or designer.