Using the two properties discussed in this chapter, you have learned how to manage continuous collision detection in a discrete simulation, and how to create passive bodies, which detect collisions without solving them.
Well, your journey into this book ends here, but there's more to learn about Box2D. You may be able to make Box2D games, but programming is a world that evolves really fast, and you should always stay up to date. I suggest you often visit www.box2d.org and http://box2d.org/manual.pdf, the official Box2D site and docs, as well as my blog www.emanueleferonato.com for the latest tricks and tutorials. Once you have made your first Flash Box2D game, don't forget to thank Erin Catto for making such an awesome library and Boris the Brave for porting it to AS3.