Leo set me the challenge of comparing Book and Lesson and I've done so on our training site.
First, I created a Lesson on Creative Commons licensing. Then I created a Book with the content and two quizzes for the assessment. I hope it will be self-evident why I felt two quizzes were needed, if not - please ask in the comments below this post.
Visit http://training.brightcookie.com and log in as username with the password Bc followed directly by our toll-free phone number.
Overview of Moodle 2.0 First Look
Get an insight into the new features of Moodle 2.0
Discover the benefits of brand new additions such as Comments and Conditional Activities
Master the changes in administration with Moodle 2.0
The first and only book that covers all of the fantastic new features of Moodle 2.0
"Technology-based forces of "disruptive innovation" are gathering around public education and will overhaul the way K-12 students learn-with potentially dramatic consequences for established public schools, according to an upcoming book that draws parallels to disruptions in other industries." - quote directly from article