This document outlines best practices for designing web APIs. It lists common HTTP methods like POST, GET, PUT, and DELETE and how they map to create, read, update, and delete (CRUD) operations on resources and resource collections. For example, POST /cats would create a new cat, GET /cats would list all cats, and DELETE /cats/1 would delete the cat with ID 1. It also provides links to the Apigee website for further information on RESTful API design.