Top books on r/linux

UNIX and Linux System Administration Handbook, 4th Edition

Linux Kernel Development (3rd Edition)

The Linux Programming Interface

Understanding the Linux Kernel, Third Edition

The Linux Command Line: A Complete Introduction

RHCSA/RHCE Red Hat Linux Certification Study Guide

Linux in a Nutshell: A Desktop Quick Reference

RHCSA/RHCE Red Hat Linux Certification Study Guide, Seventh Edition

The Design and Implementation of the FreeBSD Operating System

How Linux Works, 2nd Edition

Linux Bible

A Practical Guide to Linux Commands, Editors, and Shell Programming

Linux Device Drivers, 3rd Edition

Linux System Programming

Essential System Administration

The Unix Programming Environment

Systems Performance: Enterprise and the Cloud

Just for Fun

Advanced Programming in the UNIX Environment, 3rd Edition

Installing Linux on a Dead Badger

C Programming Language, 2nd Edition