David Seidl

(ISC)2 CCSP Certified Cloud Security Professional Official Study Guide, 3rd Edition is your ultimate resource for the CCSP exam. As the only official study guide reviewed and endorsed by (ISC)2, this guide helps you prepare faster and smarter with the Sybex study tools that include pre-test...

In the newly revised ninth edition of CompTIA Security+ Study Guide: Exam SY0-701, veteran cybersecurity professionals and educators Mike Chapple and David Seidl deliver easy-to-follow coverage of the security fundamentals tested by the challenging CompTIA SY0-701 exam. You'll explore general...

In the newly revised third edition of CompTIA CySA+ Study Guide: Exam CS0-003, a team of leading security experts and tech educators delivers comprehensive and accurate coverage of every topic and domain covered on the certification exam. You'll find clear and concise information on critical...