This document provides an introduction to Ruby and Ruby on Rails. It explains that Ruby is an object-oriented programming language created in 1993 that is similar to languages like Perl, Smalltalk, Python and LISP. It also summarizes that Ruby on Rails is an open-source web application framework built on Ruby that uses the Model-View-Controller (MVC) architecture to provide a full-stack web application framework. The document directs the reader to additional Ruby and Ruby on Rails learning resources and gives a basic overview of the file structure of a Rails application.