Packt just came out with a new book
Away3D 3.6 Cookbook by
Michael Ivanov.

Michael Ivanov is a professional Flash developers, he worked in the field of game development for 5 more than 5 years.
His guide covers any possible thing doable with the version 3.6 of
Away3D
in 80 practical recipes. Notice that this book can be very useful even
to people that are mostly interested to Molehill (Away3D 4.0) since
there are many other tutorials as Physics, Rigging and Textures, the
last chapter even covers it. From the website of Packt it is
possible to download the files used in any tutorial.
I think some of the most interesting paragraphs are:
- Following a third-person view with a spring camera
- Animating (Rigging) characters in 3DsMax
- Controlling bones animation in Collada
- Morphing objects
- Prefab3D
- Working with external assets
- Creating a physical car with JigLib
- Adding Box2D physics to Away3D objects
- Optimizing performance
- Detecting collisions between objects in Away3D
- Beginning Molehill API
This is probably the most complete book about 3D and Flash I have ever read.
The
cool thing about it is that it covers so many things that it can be
used as only source to make a 3D game with Flash. As you can
notice the paragraphs I listed above are the perfect mix of things you
will need to build a third person 3D game.
