Wer der englischen Sprache mächtig ist und eine interessante Auswahl an Bücher über Linux sucht, könnte bei dem Humble Book Bundle: Linux by Wiley 2019 fündig werden:

Pay $1 (about €0.89) or more to unlock! Linux Essentials Second Edition Ubuntu Linux Toolbox: 1000+ Commands for Power Users Second Edition Linux All-In-One For Dummies Sixth Edition Beginning Linux Programming Fourth Edition Pay $8 (about €7.10) or more to also unlock! Linux Bible Ninth Edition Shell Scripting: Expert Recipes for Linux, Bash, and more Linux Server Security: Hack and Defend CompTIA Linux+ and LPIC Practice Tests: Exams LX0-103/LPIC-1 101-400, LX0-104/LPIC-1 102-400, LPIC-2 201, and LPIC-2 202 Professional Linux Kernel Architecture Pay $15 (about €13.30) or more to also unlock! Linux Command Line and Shell Scripting Bible Third Edition CompTIA Linux+ Powered by Linux Professional Institute Study Guide: Exams LX0-103 and LX0-104 Third Edition LPIC-1: Linux Professional Institute Certification Study Guide: Exams 101 and 102 Fourth Edition LPIC-2: Linux Professional Institute Certification Study Guide: Exams 201 and 202 Second Edition Red Hat Enterprise Linux 6 Administration: Real World Skills for Red Hat Administrators Assembly Language Step-by-Step: Programming with Linux Third Edition

Auch das Strategy Bundle 2019 ist für Linuxer sicherlich einen Blick wert.