Publications
Many publications are available on the topic of network security. Some of these are relevant to the CCIE Security exam and some are not. A good understanding of the theory is required to become accomplished with hands-on configuration, and every CCIE candidate should have a well-established book collection.
Cisco has compiled a list of books that are relevant to the CCIE Security exam. This list can be found at the following website:
www.cisco.com/en/US/learning/le3/le2/le23/le476/learning_certification_type_home.html
These books include the following:
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