Cisco Routers for the Desperate is a brief, meaty introduction to Cisco routers and switches designed to get you comfortable with the Cisco environment, teach you how to troubleshoot problems, and take you through the basics of switch and router maintenance and integration into an existing network. This compact book is for those times when something goes wrong with the router or switch and you need to fix it, fast. The book doesn't pretend to cover everything related to routers, just what the network administrator needs to know to provide reliable network services. This second edition has been expanded to cover Cisco switches and updated with the latest Cisco terminology. With a tight focus on the needs of the small network administrator, Cisco Routers for the Desperate is the book you will reach for when your network goes kaboom.
I enjoyed reading this book however this book was suffering from some issues, first there were simply uncorrected spelling errors (RAIDUS anyone ?) which slipped through, next to this the book is not always complete (it mentions a port can be an access port but doesn't mention the alternative), it doesn't always explain all acronyms (e.g. it says to enter spanning-tree-mode pvst but doesn't explain what pvst actually means) and the selection of topics (no vlans, no trunking).
Hence the amount of information you get per page (it's not a very thick book) is interesting and if the protocols you're using happen to be the ones covered in this book you'll be happy.