Welcome to my tutorial website! Pick a course and start reading.
It is my firm belief that knowledge and education should be free to all. You don’t need to pay for a book, course, college, service, or whatever. You don’t need to wait on the terrible educational system to improve yourself.
Most knowledge is available online, for free. Learning happens mostly by doing and experimenting, which you can obviously do yourself, for free, any time.
I maintain this website to help this cause. It has many high-quality, playful courses from the areas in which I work. If I don’t have what you’re looking for, check out the other resources.