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This online course teaches how to use Java to build mobile apps for Google’s Android operating system.

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

This online video lecture series gives an introduction to cultural psychology.

Comprehensive language course in Greek. 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 language teaching method/app includes various languages, such as a German, English, Spanish, French, and Italian language course, and more.

This advanced-level online lecture gives an introduction to gravitational waves in astrophysics.

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

In this online course, Chris Voss (a former FBI kidnapping negotiator) teaches how to negotiate. The course includes more than 10 video lessons and various supplemental materials.

These short online courses provided by Skillshare cover various topics around personal productivity, including motivation, project management, time management, and useful...

This online lecture series examines classical and modern developments in graph theory and additive combinatorics, with a focus on topics and themes that connect the two...

This online lecture about transportation analysis uses modeling and simulation to address the mathematical background while modeling transportation system scenarios such as...

This online lecture series explores the metaphysics of life and death. It discusses topics such as various arguments for the existence of the soul, personal identity,...

In this online course, best-selling author Judy Blume teaches writing. The course includes more than 20 video lessons and various supplemental materials.

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 lecture / workshop discusses how some empirically unconfirmed or inconclusively confirmed theories in physics have nevertheless attained a high degree of trust among...

This online lecture provides an introduction to mathematical modeling of computational problems.

Khan Academy provides various free introductory chemistry video lessons. Topics include atoms and compounds, chemical reactions, the periodic table, chemical bonds,...

This online lecture discusses aspects of Organizational Psychology.

This online video lecture series discusses advanced topics related to algorithms in computer science.

This online course program gives an introduction to AWS data services.