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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.

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

Die Online-Kurse der KhanAcademy geben eine erste Einführung in die Programmierung für Anfänger. Enthalten sind die Sprachen JavaScript, HTML, CSS und SQL.

In this short online course, American designer Kelly Wearstler teaches the fundamentals of interior design.

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

This online course gives an introduction to SQL, the structured query language that is an important tool for business analysts, data analysts and data scientists.

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

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

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

Khan Academy provides various free introductory video lessons on astronomy and cosmology. Topics include the scale of the universe, the Big Bang, stars, black holes, galaxies,...

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

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

This course teaches how to program in C#, which is used for programming mobile applications, games and enterprise software.

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

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...

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

This online course teaches C# and .NET, which are open source and used across a wide variety of platforms and devices to create powerful, dynamic client and server applications...

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

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