Python Data Visualization Cookbook, Second Edition is for developers and data scientists who already use Python and want to learn how to create visualizations of their data in a practical way. If you have heard about data visualization but don't know where to start, this book will guide you from the start and help you understand data, data formats, data visualization, and how to use Python to visualize data. You will need to know some general programming concepts, and any kind of programming experience will be helpful. However, the code in this book is explained almost line by line. You don't need math for this book; every concept that is introduced is thoroughly explained in plain English, and references are available for further interest in the topic.