This is a very informative and well constructed book. The guided question and anawer format provides a brief overview of almost all important topics with smooth transitions between topics. The structure also makes it very easy to put down and pick back up if you don't happen to have much time to plow through pages or chapters in one sitting.
The only thing I would like to have seen more of are the practices and strategies for combating illnesses, maintaining health etc.; although, as this book is meant to be used as an easily accessible introduction and not comprehensive or specifically focused, critiquing the lack of detailed content would be moot. In fact, the more pressing or complicated topics are often given more depth.
Bottom line is that it's an informative and easy read and I can't wait to get a hold of another Handy Answer Book.