This study guide is an excellent resource for anyone looking to explore the world of routing protocols and concepts in the context of CCNA. Written by Allan Johnson and published by Cisco Press in 2007, this trade paperback book is part of the Lab Companion Ser. series. It has 576 pages and measures 10.7in x 8.3in x 1.4in, with a weight of 47.1 Oz.The book is written in English and covers a range of topics related to routing, making it a valuable tool for anyone studying this field. Whether you are a beginner or an experienced professional, this book is sure to provide you with insights and knowledge that will help you understand the complex world of routing protocols and concepts.