Lentin Joseph is an author, roboticist and robotics entrepreneur from India. He runs a robotics software company called Qbotics Labs in Kochi/Kerala. He has 10 years of experience in the robotics domain primarily in Robot Operating System, OpenCV, and PCL. He has authored 8 books in ROS, namely, Learning Robotics using Python first and second edition, Mastering ROS for Robotics Programming first and second edition, ROS Robotics Projects first and second edition, ROS Learning Path and Robot Operating System for Absolute Beginners. He has his Masters in Robotics and Automation from India and has also worked at Robotics Institute, CMU, USA. He is a TEDx speaker. Aleena Johny is a robotics software engineer currently working at Qbotics Labs from India. She completed her M. Tech and B. Tech from Rajagiri School of Engineering and Technology (RSET), Kerala. After her post-graduation, she worked as an Asst. Professor in computer science for 1 year. After that, she started working in Qbotics Labs. She has experience with robotics software platforms such as Robot Operating System (ROS), Open-CV, and Gazebo. She has published a research paper in International Journal and National Conferences.