1. Free Programming Books
Freely available programming books
167k ⭐
Repo: https://github.com/EbookFoundation/free-programming-books
2. Awesome
Awesome lists about all kinds of interesting topics
148k ⭐
Repo: https://github.com/sindresorhus/awesome
3....

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Freely available programming books. Coding Interview University. The Node.js best practices list. Clean Code JavaScript concepts adapted for JavaScript. Free For Dev offerings that have free tiers of interest to devops and infradev. A list of awesome beginners-friendly projects.

GitHub repositories to improve your programming skills

Definitely going in Bookmarks! Thanks for this compilation.

Great list! My favorites are:
<ol>
<li>Awesome</li>
<li>Real World</li>
</ol>

Thank you for this it is very useful and productive…:)