As someone with no idea what libuv is, the book certainly doesn't explain what it is very well in the first few pages. > This ‘book’ is a small set of tutorial

As someone with no idea what libuv is, the book certainly doesn't explain what it is very well in the first few pages. > This ‘book’ is a small set of tutorials about using libuv as a high performance evented I/O library which offers the same API on Windows and Unix. Okay. > You will use libuv purely in the context of node.js. For this you will require some other resources as the book does not cover parts specific to v8/node.js. A library for node.js, I take it? My best guess is that libuv provides a way for using C code in javascript.