How to Invest in Sneakers is a little problem solver book by Walter the Educator that belongs to the Little Problem Solver Books Series. Collect more books at WaltertheEducator.com. In recent years, the sneaker industry has evolved from a niche market for athletic shoes into a massive, multi-billion-dollar global business. Sneakers have transcended their original purpose, becoming cultural symbols, status symbols, and objects of desire. This transformation has given rise to a new form of investing: sneaker investing. Savvy collectors and investors have recognized that rare and desirable sneakers can appreciate in value, sometimes dramatically, making them a legitimate investment vehicle.