A programming language, such as LISP, Prolog and Logo, used to process lists of data (names, words, objects). Although operations such as selecting the next to first, or next to last element, or reversing all elements in a list, can be programmed in any language, list processing languages provide commands to do them. Recursion is also provided, allowing a subroutine to call itself over and over again in order to repetitively analyze a group of elements.