CoffeeScript by Example is a document that provides 7 examples of using CoffeeScript. It summarizes CoffeeScript features like functions defined with ->, jQuery integration, string interpolation, comprehensions, lexical scoping, classes and objects, and function binding. It also discusses unit testing CoffeeScript code with Jasmine and spying with Sinon.js. Resources for learning more about CoffeeScript, related tools like Jasmine and Backbone.js, and the presenter's contact information are provided.