Lisp is the second-oldest high-level programming language after Fortran and has changed a great deal since its early days, and a number of dialects have existed over its history. Today, the most widely known general-purpose Lisp dialects are Common Lisp and Scheme. Lisp was invented by John McCarthy in 1958 while he was at the Massachusetts Institute of Technology (MIT). This reference will take you through simple and practical approach while learning LISP Programming language.