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Their other posts in the index, biggest breakout first.
These three YouTube channels will teach you more about coding than any computer science degree. Number one is Fireship. It's useful for developers who already know the basics and want to keep up with the new frameworks and new tools that come out every day. He does a very good job at presenting the information in short videos so that you understand why this new technology matters and what it does. He covers whatever is relevant right now, so it's really important to keep up. The second YouTube channel is actually a playlist. It's the CS50 course from Harvard. This course is free on YouTube for absolute beginners. If you want a rock-solid foundation when it comes to coding, this is the one you go for. You're going to learn about memory, data structures, algorithms, and how computers actually work. The third one is my personal favorite. It's FreeCodeCamp. This channel has hundreds of free courses covering all sorts of topics from machine learning, Python, JavaScript, full-stack engineering, whatever you want, it's there. These are courses taught by experts. It's not just about listening to lectures. Most of these courses actually take you through end-to-end projects. So if you want deep knowledge and actual hands-on experience, this is the channel you want to go for. Save this for later and share it with a friend who needs it.