Another googling activity bring me to a new keyword "free cisco books", I ever read about professor who write book about cisco and upload it in internet. I forgot his name but I still remember the place :

lulu.com

yes, by typing cisco in search term I got a few result and the main thing is they have free download section .

Registration is simple, just entering email and password.

Here’s some link from lulu.com around cisco :

• Basic Cisco Security Exercises for Pix Firewall, IOS firewall, and Access Control Server
• CCNA Version 5-Draft
• CCIE Warm-Up: Advice and Learning Labs
• CCIE Warm-Up (Volume II)

Interesting site, I just ordering multimedia book in amazon in ebook category. I think I can download the book after make payment.  It just hardbook that I must wait for almost a month 🙁

I hope lulu.com collection will grow faster. So my next order will be placed on lulu.com

Any other source for cisco ebook?

P.S :

Cisco Books and Networking Resources Web Site