Here are the books on Amazon. Many are out-of-print:

1. Routing TCP/IP: Vol I 2nd Edition, by Jeff Doyle - http://amzn.to/1m792aG

2. CCIE Practical Studies, by Karl Solie - http://amzn.to/1mYG08L

3. CCNA in 60 Days, by Paul Browning - http://amzn.to/2yr9aMA

4. IP Routing Fundamentals, Mark A. Sportack - http://amzn.to/1mYGwUa

5. Cisco Field Manual: Router Configuration 2nd Edition, by David Hucaby and Steve McQuerry. - http://amzn.to/1ziHFjf

6. Cisco Certification: Bridges, Routers and Switches for CCIEs, Andrew Bruce Caslow & Valeriy Pavlichenko -

http://amzn.to/1morWcO

7. Cisco LAN Switching, by Kennedy Clark and Kevin Hamilton. - http://amzn.to/1oqQMqT

8. Enhanced IP Services for Cisco Networks, by Donald C. Lee. - http://amzn.to/1ocR1V4

9. Troubleshooting IP Routing Protocols, Zaheer Aziz, Johnson Liu, Abe Martey, Faraz Shamim - http://amzn.to/1n6o5BB

10. Cisco CCDA Simplified, by Daniel Gheorghe. - http://amzn.to/1ziIGb4

11. IPv6 Fundamentals: A Straightforward Approach to Understanding IPv6, Rick Graziani - http://amzn.to/1pTgEky

12. IP Subnetting - Zero to Guru, Paul Browning - https://amzn.to/2DMA9Hy

Get all my motivation goodies FREE -

https://www.howtonetwork.com/free-training/

Please use this special URL to get 30 days access for $1 -

https://www.howtonetwork.com/youtube

Check out our hands-on IT certification training website:

https://www.101labs.net

Use coupon code 'youtube' to get a fat discount.

Check out my IT books on Amazon:

Cisco CCNA Simplified - https://amzn.to/2MbABVy

Cisco CCNA in 60 Days - http://amzn.to/2yr9aMA

101 Labs - Cisco CCNA - https://amzn.to/2P7TuEY

101 Labs - CompTIA Network+ - https://amzn.to/2B6JlEX

101 Labs - IP Subnetting - https://amzn.to/2qWljqh

101 Labs - Cisco CCNP - https://amzn.to/2IMsDiS

IP Subnetting - Zero to Guru - https://amzn.to/2DMA9Hy