The first woodworking mentor I ever had is a former luthier who now works as a manager for a woodworking consumer products company. He still gives me tips on techniques, joinery, and how to use the wide range of products available to furniture makers today.
He was also kind enough to give me a lathe he had lying around. The lathe is, of course, a unique tool that does things no other tool can do. Namely, a lathe spins a workpiece, allowing you to shape the work by holding a sturdy knife up to the spinning piece. It's a lot like how you would cut a decorative groove into a clay pot, spinning on the throwing wheel.
But a decent lathe