Here are some things that Casually Python is supposed to be:
an introductory computer programming tutorial
simple, accessible, and easy to understand
not mind-numbingly boring
Casually Python - Lesson 0 | Start here from the very beginning!
Casually Python - Table of Contents | A list of every Casually Python lesson!
Email David Choi in the Contacts for questions and complaints. It's his job to add more content here, but he hasn't done that yet.