EaselJS is a library to make working with the Canvas element easier. It provides a display list to allow you to work with display elements on a canvas as nested objects. It also provides a simple framework for providing shape based mouse interactions on elements in the display list. This is useful for games, generative art, and other highly graphical experiences.
EaselJS provides straight forward solutions for working with rich graphics and interactivity with HTML5 Canvas. It provides an API that is familiar to Flash developers, but embraces Javascript sensibilities. It consists of a full, hierarchical display list, a core interaction model, and helper classes to make working with Canvas much easier.