This isn't the sort of book you pick up for 10 minutes before bed... it's the sort that you read at a desk with a pad and paper to take notes with! If you're willing to put the time and effort into a serious reading of this book, however, you will learn a tremendous amount.
If you're looking for an accessible, casual introduction to the subject, look elsewhere (I highly recommend David Bird's _Bridge Squeezes for Everyone_). It's also not suitable for beginning players. This is a book for serious study but is well worth the effort.