A hands-on approach to studying algorithms.
The Coder’s Coloring Book was acquired in October 2020.
EDIT: Sold! The Coder's Coloring Book project has been acquired as of October 2020.
The entire CCB project and assets are now listed for sale on 1kprojects.com, and is featured on the homepage! Have a look if you're interested in taking over this project.
A hands-on approach to studying data structures and algorithms
A physical coloring book of the essential data structures and algorithms you should know for your coding interview.
A beta-tested, market validated, pre-launch product that made it to the #1 spot on Hacker News in 2017.