This document discusses retrospectives in agile software development. It defines a retrospective as a meeting held at the end of a sprint by a development team to inspect what went well and what could be improved in the previous sprint. The document provides tips for facilitating a good retrospective, including defining the scope, driving engagement, using timeboxing and visualization techniques, and encouraging transparency and continuous improvement. The overall goal of a retrospective is for teams to learn and improve their processes incrementally.