User Story Mapping is an essential practice for every agile team.
Story Mapping is an excellent technique for ensuring the team understands their customers, can clearly articulate the solution and stay focused on delivery.
Easy Agile is a huge fan of story mapping and have been since 2011. We're such big fans that we created Easy Agile User Story Maps for Jira to help agile teams conduct story mapping sessions and walk away with a sprint ready to start.