Reddit mentions of Implementing Cisco IOS Network Security (IINS 640-554) Foundation Learning Guide (2nd Edition) (Foundation Learning Guides)

You could also go with something like this:

http://www.amazon.ca/Implementing-Network-Security-Foundation-Learning/dp/1587142724/ref=sr_1_1?s=books&ie=UTF8&qid=1420239263&sr=1-1

I took a security course from this author a few weeks ago, she really knows her stuff.

Thank for the advice tho, Which book are you using for study?
I found this one that is the official cert book:
http://www.amazon.com/Implementing-Network-Security-Foundation-Learning/dp/1587142724/ref=sr_1_9?s=books&ie=UTF8&qid=1422066899&sr=1-9&keywords=ccna+security&pebp=1422066937544&peasin=1587142724

And this looks the same but is the fundation(Do you know the difference?). And according with the review it doesnt help much on the test due is way to extensive lol.
http://www.amazon.com/Implementing-Network-Security-Foundation-Learning/dp/1587142724/ref=sr_1_9?s=books&ie=UTF8&qid=1422066899&sr=1-9&keywords=ccna+security&pebp=1422066937544&peasin=1587142724