The last 6 - 7 chapters are really only 1 - 5 pages long each with the bulk of the content in the beginning chapters.
My only gripe is that the PDF does not have Bookmarks that allow you to easily navigate from chapter to chapter and sections within each chapter. You can click on links in the Table of Contents, but it is a pain to always try and find the ToC to get to a particular section of the PDF. Better to just have Bookmarks within the PDF itself so you can jump to areas effortlessly. That is more of a PDF issue, however, and doesn't take away from the well-written contents in the book.