“The goal of this website is to provide the best introduction available to the covered subjects. After doing a lot of research about a particular topic, I write the articles for my past self in the hope they are useful to the present you. Each article is intended to be the first one that you should read about a given topic and also the last — unless you want to become a real expert on the subject matter. I try to explain all concepts as much as possible from first principles, which means that all your “why” questions should be answered by the end of an article. I strive to make the explanations comprehensible with no prior knowledge beyond a high-school education.”–https://explained-from-first-principles.com/
Only articles on email and the Internet, but a good start.