This document discusses agile testing methodology. It begins with general concepts of agile testing such as testing from the customer perspective as early as possible. It then discusses agile testing methodology, challenges, test levels from first to third view perspectives involving extreme testing, exploratory testing, and collaboration between development and testing. The document also covers benefits of being an agile tester such as working as one team towards a common goal. In conclusion, it states that agile testing is useful, less time consuming and effective from the customer's point of view when automated testing is performed and developers, testers and customers work together as a team.