The book will be useful for persons who have some previous experience with jQuery. No prior knowledge about Zepto.js is required.
Ian Pointer starts with describing of several ways of getting Zepto.js and checking it is working correctly for you. Then author talks about API of library comparing it to jQuery.
One of the most interesting features of Zepto.js is animation and Ian Pointer gives several simple examples of animation in his book. Also support of touches and gestures is described.
There is also some more advanced material in the book. It includes instruction how to build your own custom version of Zepto.js and introduction into Zepto.js plugins.