Rails is a massively popular web development platform embraced by Ruby programmers everywhere. In Rails Crash Course, author Anthony Lewis shows you how to harness Rails to build web applications that are fast, stable, and secure. Hands-on examples throughout cover the basics and, once the basics are out of the way, Lewis demonstrates how to create a complete Tumblr-style social network application, which includes users, posts, comments, and authentication. You will also learn how to handle security, improve performance, and debug problems in Rails applications.