Linux® Essentials
Richard Blum
Qt5 Python GUI Programming Cookbook
B.M. Harwani
Free Executive Summary
Leona Coffee
CompTIA Linux+ Guide to Linux Certification
Jason Eckert
Introduction to Sociology 2e
Heather Griffiths & Nathan Keirns & Gail Scaramuzzo & Susan Cody-Rydzewski & Eric Strayer & Sally Vyrain