Books
macOS Support Essentials 10.15 - Apple Pro Training Series: upporting and Troubleshooting macOS Catalina
2020
macOS Support Essentials 10.14 - Apple Pro Training Series: Supporting and Troubleshooting macOS Mojave, 1/e
2019
macOS Support Essentials 10.13 - Apple Pro Training Series
2018
Managing Apple Devices: Deploying and Maintaining iOS 9 and OS X El Capitan Devices, 3/e
2016
OS X Server 5.0 Essentials - Apple Pro Training Series: Using and Supporting OS X Server on El Capitan, 3/e
2016
Managing Apple Devices
2015