'Ansible Up and Running' by René Moser is an essential guide for mastering Ansible, covering everything from basic setup to advanced automation techniques. Ideal for IT professionals seeking efficient workflow solutions.

'DNS and BIND' by Cricket Liu is the go-to guide for understanding and managing the Domain Name System and BIND software. Covering basics to advanced topics, it's essential for network professionals.

'The Aix Survival Guide' by Andreas Siegert is a comprehensive manual for mastering IBM's AIX operating system. Ideal for both beginners and experts, it covers installation, configuration, and advanced administration topics with clarity and depth.