This review is from: Illustrator CS4 for Windows and Macintosh: Visual QuickStart Guide (Visual QuickStart Guides) (Paperback)
I found this book very informative about a subject that is not as straight-forward as the title Adobe Illustrator suggests.
It does not take you through every stage to complete artwork as a project from scratch:- but if you want to cross reference a method or technique you are employing to create a desired end result this book is great. For example; you can jump from say chapter*1, to chapter*28 depending on what panel/function/effect/etc you are unsure about.
This is a very user-orientated book that will help readers to understand the huge possibilities of Illustrator as you come across areas that do not behave the way that the panel/icon/effect/etc, title suggests.