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This online course teaches intermediate techniques to transform table data in SQL.

Khan Academy provides various free introductory macroeconomics video lessons. Topics include national income and the GDP, inflation, demand and supply, business cycles, the...

These online lessons explain the basics of cross sections in anatomy. In addition to the free video lessons, further (paid) trainings are available.

This course teaches how to build four webpages from scratch while learning web development fundamentals.

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

Khan Academy provides various free introductory anatomy video lessons. Topics include the circulatory system, respiratory system, urinary system, hematologic system, immunologic...

These online lessons explain the basics of neuroanatomy. In addition to the free video lessons, further (paid) trainings are available.

This series of short YouTube video lessons explains the basic fundamentals of automotive engineering for beginners. It includes topics like engines, gearbox, transmission, and...

This online course teaches the fundamental concepts of Blockchain and how to implement them in Python. Learners with prior Python experience will be able to build their own...

Khan Academy provides various free introductory programming video lessons. Topics include JavaScript, HTML and CSS, SQL, and more.

This course teaches how to program in Ruby, a flexible language used to create many websites.

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

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

This course teaches how to program in Go (Golang), an open-source programming language supported by Google.

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

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

Free Norwegian 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.

This online course gives an introduction to artificial intelligence and deep learning for programmers.

This online course gives an introduction to Kotlin, a popular programming language for Android development, web development, and more.