Quoting in Lisp is a very important concept in programs that deal with data structures. Here's the concept explained without excessive detail. This page specifically uses the Racket dialect of Lisp, but these examples are general enough that they should apply to any kind of Lisp. Definitions You don't need to memorise these right now, you can always come back and check them later for clarification. value - something like a number, a string, or a symbol. values are data. list - a one-dimension...