Hi guys i have seen 3 recommended reading books from ciscopress for 642-552, can anyone tell me if the 3 books is worth buying as i do not know any other reading materials for 642-552.
The cisco main link to the books is as below
>>>
http://www.ciscopress.com/markets/detail.asp?st=44730&rl=1
Below is the title of the 3 books
Recommended Reading: Network Security Fundamentals
>>>
http://www.ciscopress.com/title/1587051672
Recommended Reading: Cisco Access Control Security: AAA Administration Services
>>>
http://www.ciscopress.com/title/1587051249
Recommended Reading: Network Security Architectures (Chapter 14: Campus Security Design)
>>>
http://www.ciscopress.com/title/158705115X
Any comments would be very helpful

Many thanks,
Edmund