Reuven M. Lerner is a full-time trainer, offering more than 30 courses in Python and data science to companies around the world. Reuven is the author of "Python Workout" and "Pandas Workout," both published with Manning. His free, weekly "Better Developers" newsletter about Python and software engineering has more than 20,000 subscribers. Reuven lives in Modi'in, Israel with his wife and three children.