Buy @jajoosam a book.

I've heard great things about this! Get for $21

AoPS textbooks are the best ones I've read - instead of pushing information from the top, you're given a set of questions to solve using techniques you know already - and then they show you neater, cooler methods to solve them! Get for $33

I'm learning more about progress, and heard about this book from @f_mccullough! Get for $27

Kobe was a G. Never watched him live during a game but been trying the fadeaway forever. RIP 🙏 Get for $20

Recommendation from @visakanv Get for $29