Building Science Graphics: An illustrated guide to communicating science through diagrams and visualizations is a practical guide for anyone―regardless of previous design experience and preferred drawing tools―interested in creating science-centric illustrated explanatory diagrams. Starting with a clear introduction to the concept of information graphics and their role in contemporary science communication, it then outlines a process for creating graphics using evidence-based design strategies. The heart of the book is composed of two step-by-step graphical worksheets, designed to help jump-start any new project. The author website, featuring further resources and links, can be found here: https://www.buildingsciencegraphics.com/. This is both a textbook and a practical reference for anyone that needs to convey scientific information in an illustrated form for articles, poster presentations, slide shows, press releases, blog posts, social media posts and beyond.