Go to your local home improvement store and load up on cheap locks. Masterlock #3 is the defacto starting lock to learn how to pick - it's easy, and only has 3

Go to your local home improvement store and load up on cheap locks. Masterlock #3 is the defacto starting lock to learn how to pick - it's easy, and only has 3 pins, no security pins, etc. They're also very cheap and everywhere, you might even have one already you forgot about. It's important to get an easy lock to learn on. It'll allow you to learn the principles without a ton of frustration. For tools, it's difficult to beat Peterson on quality and price. Picking locks is honestly a great brain exercise. I have a collection of locks, all locked together in a giant ball of locks, and no keys. They sit on my desk, and I pick them when trying to take a break once in a while. It requires a lot of focus, and a mental map of what is going on inside the lock. Pretty soothing actually.