Learning GNU Emacs: A Guide to Unix Text Processing

Writing GNU Emacs Extensions: Editor Customizations and Creations with Lisp (Nutshell Handbooks)

Learning the vi and Vim Editors

Learning the bash Shell: Unix Shell Programming (In a Nutshell (O'Reilly))

Fluent Python

Common LISP: A Gentle Introduction to Symbolic Computation (Dover Books on Engineering)

Practical Vim: Edit Text at the Speed of Thought

C Programming Language

tmux: Productive Mouse-Free Development

Programming in Scala: A Comprehensive Step-by-Step Guide, Third Edition

The Go Programming Language (Addison-Wesley Professional Computing Series)