Start with high-confidence virtualization books, then narrow by subgenre or adjacent topics.
Professional Xen Virtualization
William von Hagen
Learning Modern Linux
Michael Hausenblas
Linux Bible
Christopher Negus
Virtualization Essentials
Matthew Portnoy
Jenkins 2: Up and Running
Brent Laster
Continuous Delivery in Java
Daniel Bryant, Abraham Marín-Pérez
Learn System Center Configuration Manager in a Month of Lunches
James Bannan
Kubernetes in Action
Marko Luksa
Microservices Security in Action
Prabath Siriwardena, Nuwan Dias
Learn Kubernetes in a Month of Lunches
Elton Stoneman
Platform Engineering on Kubernetes
Mauricio Salatino
Amazon Web Services in Action, Third Edition
Andreas Wittig, Michael Wittig
Podman in Action
Daniel Walsh
Docker in Action, Second Edition
Jeffrey Nickoloff, Stephen Kuenzli
Linux in Action
David Clinton
