This is part 4 from series “Tiny Great Languages”. Final code is on Github. Part 1: Assembly. Part 2: BASIC. Part 3: Forth/MOUSE. Part 4: Lisp. Part 5: APL/K. Done with the concatenative language MOUSE, we can now turn our attention to another small and elegant language from way back: Lisp. Lisp is famous for its minimalist syntax (similar to Forth, the parser is almost nonexistent) and its clear, logical evaluation rules.