CiscoPress's "Troubleshooting IP Routing Protocols" by Shamim, Azis, Liu and Martey is mislabeled. CiscoPress has labeled this book as part of their `CCIE Professional Development' series - I really do not see the value of placing this book in the same vein as other CCIE books in the series (such as Doyle, Solie, & Clark). However, having been employed as a Network Administrator for a number of years, the book does help troubleshoot and isolate routing protocol issues. Each major IGP (RIP, IGRP, EIGRP, OSPF & IS-IS) along with PIM and BGP is discussed at depth. Each routing protocol is dedicated 2 chapters - one chapter discussing the protocol and one chapter discussing troubleshooting methodologies. The troubleshooting chapters start out with flow charts that can help isolate the issue. Too be honest though, the flow-charts are lacking in depth, and I found only helped verify simple routing issues. The book is also missing a much needed chapter on route redistribution.There are not that many typos in the book. I give this book four stars as it takes a unique approach to troubleshooting routing protocol issues. However, I fail to find the reason this book needs to be on a CCIE's bookshelf. I give this book 4 pings out of 5: !!!.!