Promissing "precise definitions[..] regardless of your level of expertise" this book defintely falls short of it's target.
Having to use this book for a can.it university course, I find that app. 2/3 of the terms used in the industry is simply not covered in the book. The situation is even worse as for the area of TeleCommunication where the book fails to list a wast majority of even the most elementary terms!
What's more, the terms it does list, it does so very poorly. In fact I found that MS Computer Dictionary listed network and telecom terms much more specific and exact, than did this book!
The only pros I can honestly find about this book is it's low price and the fact that it's so new.
All in all a pretty poor book.