CompTIA Security+ Study Guide with over 500 Practice Test Questions: Exam SY0-701, 9th Edition
Mike Chapple and David Seidl
It is the cleanest one-book balance of readable explanation, exam coverage, and enough built-in practice to show where you are weak before test week.
If you search “CompTIA Security+ 2026” because you want the safest study-book choice for SY0-701, start here. Mike Chapple and David Seidl are the most established pair in this category, and the 9th edition is built specifically around SY0-701. The book covers the current exam objectives without feeling like a raw objective dump, which matters because Security+ is broad enough that weak books become memorization soup very quickly.
Skip this if
Skip this if you already know the material well and mainly need pressure-testing. In that case, the dedicated practice-test book is a better second purchase.