Geek-chic swag for data scientists and other techies

Hi there! My name is Christoph and I work as a data scientist and business intelligence developer using R, Python, Julia and SQL. I'm also an author and maintainer of tidy-finance.org. 
Sometimes I have an idea for a t-shirt or a mug that I want to share with others. Thanks to Print-On-Demand services and platforms like Etsy, I can offer my designs to the public without any set-up costs or inventory management - I hope you enjoy them :)

Legal imprint