Humble book bundle: Cybersecurity presented by Wiley
There's only one directly tied to a certification, but there's several books that are extremely highly regarded in their respective security field.
Tier 1:
Social Engineering: The Art of Human Hacking
The Web Application Hacker's Handbook: Finding and Exploiting Security Flaws, 2nd Edition
Practical Reverse Engineering: x86, x64, ARM, Windows Kernel, Reversing Tools, and Obfuscation
Threat Modeling: Designing for Security
Tier 2:
Security Engineering: A Guide to Building Dependable Distributed Systems, 2nd Edition
The Shellcoder's Handbook: Discovering and Exploiting Security Holes, 2nd Edition
Cryptography Engineering: Design Principles and Practical Applications
The Art of Deception: Controlling the Human Element of Security
The Art of Memory Forensics: Detecting Malware and Threats in Windows, Linux, and Mac Memory
Tier 3:
Malware Analyst's Cookbook and DVD: Tools and Techniques for Fighting Malicious Code
Unauthorised Access: Physical Penetration Testing For IT Security Teams
Secrets and Lies: Digital Security in a Networked World, 15th Anniversary Edition
CEH v9: Certified Ethical Hacker Version 9 Study Guide
Applied Cryptography: Protocols, Algorithms and Source Code in C, 20th Anniversary Edition
