This document provides an overview and introduction to Large Scale Scrum (LeSS), a framework for scaling Scrum to multiple teams. It discusses that LeSS aims to simplify overly complex organizational designs while maintaining agility. Key aspects of LeSS include having a single product backlog, definition of done, and sprint for all teams, as well as complete cross-functional teams. The goals of LeSS are to have less roles, priorities, and artifacts for more responsibility, shared goals, and customer focus. LeSS adheres to Scrum principles and aims to deliver the most business value with the least complexity.