Teddy Petrou is founder of Dunder Data, a company that specializes in helping students become experts at data science using Python. Teddy is the author of multiple highly rated texts such as Pandas Cookbook, Master the Fundamentals of Python, and Master Data Analysis with Python. Teddy has taught hundreds of students Python and data science during in-person classroom settings. He sees first hand exactly where students struggle and continually upgrades his material to minimize these struggles by providing simple and direct paths forward. Teddy holds a master's degree in statistics from Rice University.