"CompTIA Data+ Study Guide", (With Sharif Nijim), John Wiley and Sons, 2022
"PenTest+ Study Guide, Second Edition", (With David Seidl), John Wiley and Sons, 2021
"Cyberwarfare: Information Operations in a Connected World", (With David Seidl), Jones and Bartlett, 2021
"Systems Security Certified Professional (SSCP) Official Practice Tests, Second Edition", (With David Seidl), John Wiley and Sons, 2021
"Certified Information Privacy Professional, United States (CIPP/US) Study Guide", (With Joe Shelley), John Wiley and Sons, 2021
"Certified Information Systems Security Professional (CISSP) Official Practice Tests, Third Edition", (With David Seidl), John Wiley and Sons, 2021
"Certified Information Systems Security Professional (CISSP) Official Study Guide, Ninth Edition", (With James Stewart, Darril Gibson), 2021
"Security+ SY0-601 Study Guide, Eighth Edition", (With David Seidl), John Wiley and Sons, 2021
"Cybersecurity Analyst+ Practice Tests, Second Edition", (With David ), John Wiley and Sons, 2020
"Cybersecurity Analyst+ Study Guide, Second Edition", (With David Seidl), John Wiley and Sons, 2020
"Practical Machine Learning in R", (With Frederick Nwanganga), John Wiley & Sons
"PenTest+ Study Guide", (With David Seidl), John Wiley and Sons, 2018
"Certified Information Systems Security Professional (CISSP) Official Practice Tests", (With David Seidl), John Wiley & Sons, 2018
"Cybersecurity Analyst+ (CSA+) Practice Tests", (With David Seidl), John Wiley & Sons, 2018
"Cybersecurity Analyst+ (CSA+) Study Guide", (With David Seidl), John Wiley & Sons, 2017
"Certified Information Systems Security Professional (CISSP) Official Practice Tests", (With David Seidl), John Wiley & Sons, 2016
"Certified Information Systems Security Professional (CISSP) Official Study Guide", (With James Stewart, Darril Gibson), John Wiley & Sons, 2015
"Securing the Software Development Lifecycle", John Wiley & Sons, 2014
"Cyberwarfare: Information Operations in a Connected World", (With David Seidl), Jones and Bartlett, 2014
"Access Control, Authentication, and Public Key Infrastructure", (With Bill Ballad, Erin Banks), Jones and Bartlett, 2013
"Symantec Certified Security Professional Study Guide", (With Kirk Hausmann), Addison Wesley, 2005
"Information Security Illuminated", (With Michael Solomon), Jones and Bartlett, 2004
"GSEC Prep Guide: Mastering SANS GIAC Security Essentials", John Wiley & Sons, 2003
"Designing Windows 2000 Directory Services", (With Bruce Parrish), Thompson, 2002
"MCSE CoursePrep Exam Guide: ISA Server 2000", Course Technology, 2002
"TICSA Training Guide", (With Debra Shindler), Que, 2002