The best math book for self-learning math
A known pattern in self-learning is getting stuck on planning: you enter an infinite loop of hunting for the best sources, books, courses, you name it. I don't want to brag, but I consider myself a world champion of the planning loop. I've literally bought seventeen math books searching for the "best one." The latest is The Calculus Lifesaver by Adrian Banner. It arrives in a few days, and I already know that after 10 pages I'll start looking for a better one... but who knows. Maybe this time I stick with it.