• Agile Software Development Coursera video course from IUniversity of Michigen
• AB Testing podcast
• Agile for Humans podcast
• Agile in 3 minutes podcast
• Differences Between Scrum and Extreme Programming
• Manifesto for Agile Software Development
• Article about the Agile Manifesto by Martin Fowler and Jim Highsmith
• Switch: How to Change Things When Change Is Hard by Chip Heath and Dan Heath
• Extreme Programming Explained: Embrace Change by Kent Beck and Cynthia Andres