I am into the 4th chapter and I sometimes just can't help but chuckle about the simplicity of this book. The author assumes that the reader is a complete newbie to Flash & ActionScript. He repeats things until the horse is dead, dead, dead! The book is full of fluff to increase the page count.However, if you never touched ActionScript or any programming language then this book is for you. It's a book that will take a newbie to an intermediate level if you can get passed the fluff and not fall asleep to the repeating advice.There are mistakes in the book as well. Ran into one last night that I couldn't believe was missed in the editing process.It's a lesson paced book which is why I bought it but I would opt for something else if you want an "Advanced" ActionScript reference.