difficulty All (6) Beginner (1) Intermediate (3) Advanced (2)

Learn CS from First Principles

A four-year computer science degree, built from the ground up.

1 course · 12 lessons
↗ after Ruby
available

Introduction to Algorithms and Complexity

Introduction to Algorithms and Complexity covers: Core Topics, Core Topics (continued). Year 1, Quarter 1. Includes 12 exercises and 2 pr...

5 framed 0 taught
46 hr
→

Ruby/Rails Total Mastery: From Experienced Practitioner to Complete Mastery

Ship production Rails apps the way the pros do.

1 course · 7 lessons
↗ Intermediate
available

Ruby Language Mastery

Move from "I write Ruby daily" to "I understand how Ruby works internally — the object model, method lookup, closures, metaprogramming, m...

4 framed 0 taught
60 hr
→

Algorithms & Data Structures Total Mastery: From Working Knowledge to Knuth

From working knowledge to Knuth — algorithmic thinking that endures.

1 course · 7 lessons
↗ Intermediate
available

Foundations — Mathematical Thinking & Problem Solving

Build the mathematical maturity needed to read algorithm textbooks, understand asymptotic analysis, write proofs by induction, and reason...

4 framed 0 taught
35 hr
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Pre-launch preview — foundation courses only. The rest unlocks at full launch.