Joseph L. Robot Operating System for Absolute Beginners 2ed 2022

Textbook in PDF format

You'll learn the basic foundation of Ubuntu Linux. Begin with the fundamentals. Installation and useful commands will give you the basic tools you need while programming a robot. Then add useful software applications that can be used while making robots. Programming robots can be done using any of the programming languages. Most popular programming languages are Python and C++. You will incorporate the fundamentals of C++ by learning object oriented programing concepts from example and building C++ projects.
Getting Started with Ubuntu Linux for Robotics
Fundamentals of C++ for Robotics Programming
Fundamentals of Python for Robotics Programming
Kick-Starting Robot Programming Using ROS
Programming with ROS
Robotics Project Using ROS