This document discusses mixed reality and the use of spatial anchors. It begins with an introduction to spatial anchors and cloud spatial anchors, which provide a common frame of reference to place digital content in physical locations across devices. The rest of the document demonstrates how to create spatial anchors using Azure Spatial Anchors and Unity, provides examples of how spatial anchors can be used for collaborative design reviews, wayfinding and IoT applications, and concludes with information on resources and a question period.