If you need a general overview of all the new applications in iLife 08, then this book is for you. The book does a reasonable job of combining all the apps into one overall task (i.e. building a website with photos, podcasts, video, blogs, etc).
If however, you are looking for a more detailed book on video editing, web site development, photo editing, and / or audio production then this book (and ilife for that matter) is not for you.
Other than that, this is a great beginner's book.