To answer your questions, try one of these books (they're nearly identical): https://mitpress.mit.edu/books/little-lisper-trade-edition https://mitpress.mit.ed

To answer your questions, try one of these books (they're nearly identical): https://mitpress.mit.edu/books/little-lisper-trade-edition https://mitpress.mit.edu/books/little-lisper-trade-edition https://mitpress.mit.edu/books/little-schemer-fourth-edition https://mitpress.mit.edu/books/little-schemer-fourth-edition Exercises in recursion, not so easy to do in other languages, and they really expand your thinking.