>>4
You might be interested in a book called Little Schemer. It has set of laws and commandments that are designed to aid new Scheme programmers. I found list of them online: https://github.com/grassdog/The-Little-Schemer/blob/master/ten-commandments-and-five-rules.md
Also, it is important to keep in mind that Lisp is not limited to functional programming paradigm. However, Schemers often prefer functional paradigm.