I purchased this book when my job required me to learn Adobe Captivate as soon as possible. I knew immediately to see if Kevin Siegel had written a book on the subject (and of course he had). I first purchased Adobe RoboHelp 8 HTML: The Essentials
when I had to learn RoboHelp to create online help content and I am now hooked. This book is straight-forward and can easily be completed in 2 days. This is not to say it doesn't cover all necessary material for an essentials book, it certainly does. However, the book teaches through Skills and Drills learning which gets the learner into Captivate and playing around up front.
I have purchased Adobe Captivate 5: Beyond the Essentials (for Windows & Macintosh)
and have no doubt that it will be as well written and informative as the other two books by Siegel.