The Product Owner Manual is a short e-book available for free from ScrumSense. It discusses in a practice-oriented way the roles and techniques used by a product owner in Scrum teams, including the story writing principles and how to perform release planning.
The product owner role is crucial for a Scrum team because as the book states it ” A good ScrumMaster can take the team to the point of being self-organized and motivated; they can help the team achieve good Scrum. But to achieve truly great Scrum, an empowered, dedicated ...