Doubt about these 2 books

joemendolajoemendola Member Posts: 8 ■□□□□□□□□□
in CCNA Security
Hi peeps, id love to know what you advise to me to buy, between these 2 books please:

1- [h=1]CCNA Security Official Exam Certification Guide[/h]http://www.amazon.co.uk/Security-Official-Certification-640-553-Guides/dp/1587202204/ref=sr_1_1?ie=UTF8&qid=1332507760&sr=8-1

2- [h=1]CCNA security by Richard Deal[/h]CCNA Cisco Certified Network Associate Security Study Guide with CDROM Exam 640-553 Certification Press: Amazon.co.uk: Richard Deal: Books

thanks in advance
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