A place to think in Ruby.

We create written study guides for people who want to understand how Ruby programs work, one idea at a time.

From an expression to a complete program

Our collection moves from values and methods to objects, file handling, testing and project structure. Each guide has a defined subject so you can choose material that fits what you already know and what you want to explore next.

How we approach learning

A useful explanation shows both the code and the reasoning around it. Our guides are organised around concepts, worked examples and practice prompts. We encourage readers to trace examples, change inputs and explain the result in their own words.

What to expect

These are English-language digital reading materials for independent study. They are not live classes, a mentoring programme or an accredited qualification. Learning depends on your starting point, practice and the time you spend with the material.