ros by example英文原版，更详细。

1. Purpose of this Book 2. Real and Simulated Robots 3. Operating Systems and ROS Versions 4. Reviewing the ROS Basics 5. Installing the ros-by-example Code 6. Installing the Arbotix Simulator 7. Controlling a Mobile Base 8. Navigation, Path Planning and SLAM 9. Speech Recognition and Synthesis 10. Robot Vision