Network Security
Start with high-confidence network security books, then narrow by subgenre or adjacent topics.
Start Here
Linux Hardening in Hostile Networks
CompTIA Network+ N10-009 Exam Cram
Exam Ref AZ-500 Microsoft Azure Security Technologies
CCNP Enterprise Wireless Design ENWLSD 300-425 and Implementation ENWLSI 300-430 Official Cert Guide
Red Hat RHCE 8 (EX294) Cert Guide
CompTIA Network+ N10-008 Cert Guide
Designing and Developing Secure Azure Solutions
Exam Ref AZ-900 Microsoft Azure Fundamentals
More Network Security Books
Red Hat RHCSA 9 Cert Guide
CompTIA Security+ SY0-701 Exam Cram
Practical UNIX and Internet Security
Mastering FreeBSD and OpenBSD Security
CWNA
Social Engineering
CompTIA A+ Complete Study Guide
CompTIA A+ Certification All-in-one for Dummies
CompTIA CySA+ Study Guide
Kali Linux Penetration Testing Bible
The Official (ISC)2 CISSP CBK Reference
CISM Certified Information Security Manager Study Guide
CompTIA A+ Complete Study Guide
Project Zero Trust
The Official (ISC)2 CCSP CBK Reference
Deep Dive
Cybersecurity All-in-one for Dummies
Cybersecurity First Principles: a Reboot of Strategy and Tactics
CompTIA CySA+ Study Guide
CompTIA Security+ Practice Tests
CompTIA Security+ Certification Kit
CC Certified in Cybersecurity Study Guide
ISC2 CISSP Certified Information Systems Security Professional Official Study Guide
IAPP CIPP / US Certified Information Privacy Professional Study Guide
CISA Certified Information Systems Auditor Study Guide
CompTIA Linux+ Study Guide
Locked Up
AP Computer Science Principles Premium, 2026: Prep Book With 6 Practice Tests + Comprehensive Review + Online Practice
Practical Malware Analysis
Rootkits and Bootkits
Practical Forensic Imaging
Practical Binary Analysis