
The Design of Web APIs is a practical, example-packed guide to crafting extraordinary web APIs. Author Arnaud Lauret demonstrates fantastic design principles and techniques you can apply to both public and private web APIs.
Not a book, but MS REST API Guidelines are pretty good although they don't cover funky important details like how to properly do REST operations/actions.
https://github.com/microsoft/api-guidelines
This is short one based on RedHat VM engineer experience:
https://restful-api-design.readthedocs.io/en/latest/intro.ht...
Manning has a solid books on topic:
It even spends the first few chapters talking about API design in general (not just for REST) with really great, intuitive examples.