* Algorithms; Robert Sedgewick, Kevin Wayne; Addison Wesley
* BPF Performance Tools - Linux System and Application Observability, Brendan Gregg; Addison Wesley
* Implementing Service Level Objectives; Alex Hidalgo; O'Reilly
* Relayd and Httpd Mastery; Michael W Lucas
* The Linux Programming Interface; Michael Kerrisk; No Starch Press 
* Understanding the Linux Kernel; Daniel P. Bovet, Marco Cesati; O'Reilly
* Groovy Kurz & Gut; Joerg Staudemeier; O'Reilly
* Go: Design Patterns for Real-World Projects; Mat Ryer; Packt