Ubuntu Linux Toolbox: 1000 Commands for Ubuntu and Debian Power Users - GOOD

Ubuntu Linux Toolbox by Christopher Negus

Fedora Linux Toolbox: 1000+ Commands for Fedora, CentOS and Red Hat Power Users

Ubuntu Linux Toolbox: 1000+ Commands for Ubuntu and Debian Power

Linux for Programmers and Users

Linux For Dummies, 9th Edition by Richard Blum

Fedora Linux Toolbox: 1000+ Commands for Fedora, CentOS and Red Hat Power Users,

Linux Bible - Paperback By Negus, Christopher - VERY GOOD