About the Author

Sam Ruby is a prominent software developer who has made significant contributions to the many of the Apache Software Foundation's open source projects, and to the standardization of web feeds via his involvement with the Atom web feed standard and the popular Feed Validator web service. He currently holds a Senior Technical Staff Member position in the Emerging Technologies Group of IBM. He resides in Raleigh, North Carolina. As one of the authors of the Agile Manifesto, Dave Thomas understands agility. As the author of "Programming Ruby", he understands Ruby and how to describe Ruby applications. David Heinemeier Hansson is the creator of the Rails framework.