The nature of exploration, coupled with the ability of testers to rapidly apply their skills and experience, make exploratory testing a widely used test approach—especially when time is short. Unfortunately, exploratory testing often is dismissed by project managers who assume that it is not reproducible, measurable, or accountable. If you have these concerns, you may find a solution in a technique called session-based test management (SBTM), developed by Jon Bach and his brother James to specifically address these issues. In SBTM, testers are assigned areas of a product to explore, and testing is time boxed in “sessions” that have mission statements called “charters” to create a meaningful and countable unit of work. Jon discusses—and you practice—the skills of exploration using the SBTM approach. He demonstrates freely available open source tools to help manage your exploration and prepares you to implement SBTM in your test organization.