CompTIA Security+ SY0-701 Cert Guide
Lewis Heuermann
CompTIA Security+ SY0-501 Cert Guide
Dave Prowse
Cisco Cybersecurity Operations Fundamentals CBROPS 200-201 Official Cert Guide
Omar Santos
Red Hat RHCSA 9 Cert Guide
Sander van Vugt
CompTIA Linux+ / LPIC-1 Cert Guide
Ross Brunson & Sean Walberg
CompTIA Network+ N10-008 Cert Guide
Anthony Sequeira
CompTIA A+ Core 1 (220-1001) and Core 2 (220-1002) Cert Guide
Richard McDonald
CompTIA Project+ Cert Guide
Robin Abernathy
MCSA 70-740 Cert Guide
Anthony Sequeira
CompTIA IT Fundamentals+ FC0-U61 Cert Guide
Mark Soper