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Khan Academy provides various free introductory video lessons on the history of the United States.

This online course teaches how to manage data with SQL, including mastering complex commands to manipulate and query data stored in relational databases. It includes topics such...

This online course teaches how to design and build websites by learning the basic principles of design like branding, color theory, and typography.

In this online course, professional skateboarder Tony Hawk teaches skateboarding skills and techniques.

This series of online courses explores the fundamental building blocks of data science, including statistics, data analysis, data visualization, programming with SQL and Python,...

In this online course, "Watergate" reporter Bob Woodward teaches investigative journalism. The course includes more than 20 video lessons and various supplemental materials.

Free Spanish language app with many short tests to learn "on the go". (Not a video course.)

In this online course, Carlos Santana teaches how to play guitar. The course includes more than 10 video lessons and various supplemental materials.

This online course gives an introduction to jQuery (a JavaScript library).

In this online course, presidential campaign strategists David Axelrod and Karl Rove reveal what goes into effective political strategy and messaging. The course includes more...

In this online course, Beatles drummer Ringo Starr shares his principles for creative collaboration, finding your unique playing style, and embracing your musical journey with joy.

This online course gives an introduction to Alexa, the Voice User Interface (VUI) application by Amazon.The course shows how to build a simple interaction model that responds to...

Free German language app with many short tests to learn "on the go". (Not a video course.)

Khan Academy provides various free introductory mathematics video lessons. Topics include elementary math, algebra, geometry, calculus, trigonometry, differential equations,...

This series of online courses gives an introduction to Data Analysis using the Python programming language.

Comprehensive language course in Hindi. The idea of this course is to learn the language "like a native". This means that the course creates an immersive learning experience...

This online course teaches how to program in Python, a powerful and popular programming language. Many students learn Python as their first programming language.

This online course teaches how to create animations as well as how to test an app, how to use Google Play Services, and how to simplify networking by using Retrofit and RxJava.

This course teaches how to build web apps using AngularJS 1.x, enabling learners to use AngularJS to create their own apps.

This online course gives an introduction to the programming language Ruby.