- Comptia Linux+ Xk0-004 Cert Guide
- Comptia Linux+/Lpic-1 Portable Command Guide: All the Commands for the Comptia Lx0-103 & Lx0-104 and LPI 101-400 & 102-400 Exams in One Compact, Portable Resource
- Comptia Linux+ Portable Command Guide: All the Commands for the Comptia Xk0-004 Exam in One Compact, Portable Resource
- Beginning Perl Programming: From Novice to Professional
- The Lab Guide for Red Hat Enterprise Linux 7 Security Guide