This page contains resources for my book “The Art of Clean Code” (NoStarch, 2022). You can check out the book here.
Olivetti Faces
Access the code in the Jupyter Notebook here:
Life Expectancy Calculator
Access the code in the Jupyter notebook here:
The Art of Clean Code
Most software developers waste thousands of hours working with overly complex code. The eight core principles in The Art of Clean Coding will teach you how to write clear, maintainable code without compromising functionality. The book’s guiding principle is simplicity: reduce and simplify, then reinvest energy in the important parts to save you countless hours and ease the often onerous task of code maintenance.
- Concentrate on the important stuff with the 80/20 principle — focus on the 20% of your code that matters most
- Avoid coding in isolation: create a minimum viable product to get early feedback
- Write code cleanly and simply to eliminate clutter
- Avoid premature optimization that risks over-complicating code
- Balance your goals, capacity, and feedback to achieve the productive state of Flow
- Apply the Do One Thing Well philosophy to vastly improve functionality
- Design efficient user interfaces with the Less is More principle
- Tie your new skills together into one unifying principle: Focus
The Python-based The Art of Clean Coding is suitable for programmers at any level, with ideas presented in a language-agnostic manner.

While working as a researcher in distributed systems, Dr. Christian Mayer found his love for teaching computer science students.
To help students reach higher levels of Python success, he founded the programming education website Finxter.com that has taught exponential skills to millions of coders worldwide. He’s the author of the best-selling programming books Python One-Liners (NoStarch 2020), The Art of Clean Code (NoStarch 2022), and The Book of Dash (NoStarch 2022). Chris also coauthored the Coffee Break Python series of self-published books. He’s a computer science enthusiast, freelancer, and owner of one of the top 10 largest Python blogs worldwide.
His passions are writing, reading, and coding. But his greatest passion is to serve aspiring coders through Finxter and help them to boost their skills. You can join his free email academy here.