Episode 40 of the Modern Agile Show features an interview with Elisabeth Hendrickson, a veteran tester, developer, agilist, trainer, author and former executive of Research and Development at Pivotal. We discuss how Elisabeth first got into agile development and what a paradigm shift Extreme Programming (XP) was for her. We discuss her definition of agile and how she has applied agile principles to her work. We discuss how the testing community first reacted to practices like Test-Driven Development. We also discuss Exploratory Testing, the impact it’s had on agile development and Elisabeth’s book on the subject, called Explore It!: Reduce Risk and Increase Confidence with Exploratory Testing.