Explore courses.
Every topic, every format. Pick a course, start learning, with an AI tutor inside every lesson.
Trending Courses
Here’s what people are learning right now.
Courses to get you started
Here is what people usually start with.
AI For All
AI is reshaping every field, and this course gives you a clear, honest picture of how it actually works, where it's heading, and what that means for you.
AI for Creators (Without Losing Your Voice)
Learn how to use AI tools to do more creative work, faster, without sounding like every other creator who's using the same tools.
AI in Modern Military Strategy
Modern war creates more data than any person can process. This course explains how algorithms help leaders filter through the noise to make faster, sharper decisions on the battlefield.
Advanced Derivatives and Trading Strategies
Go beyond pricing formulas and learn how derivatives are actually used: to hedge real exposures, express precise market views, and manage risk at the portfolio level across options, futures, swaps, and exotic structures.
Air Distribution and Ventilation
Learn how air actually moves through a building, from duct design and Manual D calculations to air balancing, ventilation standards, and indoor air quality.
Browse by Category
Level up at your job.
Grow your skillset, keep up with technology, or learn new approaches to common problems.
AI for Creators (Without Losing Your Voice)
Learn how to use AI tools to do more creative work, faster, without sounding like every other creator who's using the same tools.
AI in Modern Military Strategy
Modern war creates more data than any person can process. This course explains how algorithms help leaders filter through the noise to make faster, sharper decisions on the battlefield.
Advanced Derivatives and Trading Strategies
Go beyond pricing formulas and learn how derivatives are actually used: to hedge real exposures, express precise market views, and manage risk at the portfolio level across options, futures, swaps, and exotic structures.
Air Distribution and Ventilation
Learn how air actually moves through a building, from duct design and Manual D calculations to air balancing, ventilation standards, and indoor air quality.
Build Your First App with AI
Learn to build and ship a real app using AI tools, no coding experience required, and walk away with something live that solves an actual problem.
Hot & Fresh Courses
Learn that new new.
AI in Modern Military Strategy
Modern war creates more data than any person can process. This course explains how algorithms help leaders filter through the noise to make faster, sharper decisions on the battlefield.
Advanced Derivatives and Trading Strategies
Go beyond pricing formulas and learn how derivatives are actually used: to hedge real exposures, express precise market views, and manage risk at the portfolio level across options, futures, swaps, and exotic structures.
Air Distribution and Ventilation
Learn how air actually moves through a building, from duct design and Manual D calculations to air balancing, ventilation standards, and indoor air quality.
Build Your First App with AI
Learn to build and ship a real app using AI tools, no coding experience required, and walk away with something live that solves an actual problem.
Build Your First Chrome Extension with AI
Stop wishing a website had a specific button or a better way to show data. This course shows you how to use AI to build your own Chrome extensions that do exactly what you need.
Bite-Sized Breakdowns
Goal-focused course bundles to get you there faster.
Build your first budget this weekend.
3 courses to go from financially confused to confidently in control.
Air Distribution and Ventilation
Learn how air actually moves through a building, from duct design and Manual D calculations to air balancing, ventilation standards, and indoor air quality.
Build Your First App with AI
Learn to build and ship a real app using AI tools, no coding experience required, and walk away with something live that solves an actual problem.
Build Your First Chrome Extension with AI
Stop wishing a website had a specific button or a better way to show data. This course shows you how to use AI to build your own Chrome extensions that do exactly what you need.
Explore Categories
Explore Collections
Naval Architecture Foundations
Learn the core engineering principles used to design and build warships. You will cover how vessels float, move, and hold together under the extreme conditions of the open sea.
Electrical Systems
This collection covers electrical theory, safety codes, and wiring techniques. It provides the technical background needed to install, maintain, and fix electrical equipment in residential and commercial buildings.
HVAC System Core Skills
This collection covers the physics, mechanical cycles, and air movement principles needed to maintain residential heating and cooling equipment.
Staff Picks
Hand-picked by the team.
Build a Website in an Afternoon
Plan, design, write, and launch a professional website in a single focused session, with no prior experience and no developer required.
Building a Side Career While Keeping Your Day Job
Learn how to build a real income stream alongside your day job — one that compounds over time instead of just trading hours for dollars.
Building an Audience From Zero
Learn how to find your niche, create content that spreads, and grow a real audience from scratch — without an existing following, a big budget, or years to spare.
California Agricultural Trends and Data Analysis
Learn why California's landscape dictates global food prices and how to use real data to predict which crops will dominate the next decade.
Chess Strategy for Kids
Stop just moving pieces and start winning games. This course teaches young players the tactical patterns and opening rules they need to outsmart their opponents.