ActionScript 3.0 gives you total control over what you want to happen on the stage. Long gone are the days when all ActionScript could do was start and stop an animation. You can now do everything from create shapes dynamically to load animated movie clips on the fly.
Book IV shows you how to harness the power of ActionScript 3.0 using both the Timeline and the external ActionScript files. You can drag images across the stage, dynamically use text to respond to user actions, use the new Vector class to draw images and store and retrieve data, and much, much more. This is Flash with a power boost!