Amazon.com

For my studies i just buy on amazon.com the CISCO CCIE Routing and Switching Certification Guide 4th Edition.

I will use this book to prepare my written exam, and also have an other official cisco book.

I have already the cisco switch book.I used this book for my ccnp studies.

I will receive the book in 4 day, i hope to pass my written exam the second week of june.