Wes Bos is a Canadian full-stack developer, podcaster, and one of the most widely followed teachers in the JavaScript ecosystem. He runs his eponymous online course catalog at wesbos.com and co-hosts Syntax, the long-running web-development podcast. His teaching style — short, dense, project-based screencasts paired with downloadable starter files — set the template that most modern coding-course creators now follow.
The catalog mirrored under this source covers the surface area Wes is best known for: ES6 for Everyone (the canonical introduction to modern JavaScript syntax for a generation of front-end engineers), Master Gatsby, Learn Node (Node.js with MongoDB), and Full Stack Advanced React + GraphQL. The material is paid and aimed at developers who already know the basics and want a focused, working-engineer's tour through a specific stack rather than a beginner walkthrough.