"Authorized" is misleading ---This book is an "authorized" training material, which signifies that it covers the content of the relevant certification exams. The accuracy and delivery of the content, however, have not necessarily been reviewed or approved by the certifying agencies.
A review of the Table of Contents (16 pages worth) leads one to believe this book (800+ pages worth) will cover it all and with great detail. From there to Chapter 4 (where I decided the book wasn't worth completing), it was mostly downhill. Here are some examples of what I found:
- terms not introduced or not introduced at the first use, and/or not identified in the glossary
- layout and delivery of information difficult to follow, repetitious of some information, while not including other pertinent information
- errors (bandwidth of Cat 5e cable listed at 200 Mbps (Table 1-5, pg 11) and at 100 Mbps (Table 4-2, pg 101))
- errors (pg 24: Chapter 1 test question # 4 directs to Table 1-2 rather than Table 1-3 to reference for answering)
- why?! (includes text, tables and figures with details on voltage/plugs/etc. used by other countries, yet is incomplete on the products used in the US)
- errors (pp 83-84: identifies the "minimum" bend radius for Cat5 to be 1 inch, while Figure 3-7 depicts the diameter)
- errors (pg 85: last paragraph refers to Figures 3-11 and 3-12, rather than Figures 3-9 and 3-10)
- errors (pg 93: Answer #1 is identified as "C, User Training Guide", but the answer text expands on "D, Wire Chart".
I highly recommend persons desiring the CompTIA HTI+ and/or CEDIA Installer I certifications, as well as those wishing to simply increase their knowledge base, look elsewhere for study materials.
Some of the information provided in this book may truly be of value (i.e. accurate and complete), however, with all the errors I've found, I am unable to rely on this book as a good resource.