Last year, Microsoft Press started a series of Rapid Review certification books. With 6 currently in print; two of the titles are around security, namely CISSP Rapid Review by Darril Gibson andCompTIA Security+ Rapid Review by Michael Gregg.
The books are meant as secondary references for the certification and indeed make excellent review guides.
The guides are meant for certification exam candidates who already have a good grasp of the exam objectives through a combination of experience, skills and study, and are looking for a review guide to help them assess their readiness for the certification exam.
For candidates preparing for the Security+ and/or CISSP exams, the CISSP Rapid Review and Security+ Rapid Review guides are useful resources to making passing the exam significantly easier.