This document discusses usability and user experience design best practices for virtual reality. It begins with an overview of VR and its current state. It then outlines some key ergonomic requirements like minimizing latency and motion to prevent cyber sickness. Several interactive design patterns are presented, such as the reticle for object selection, fuse buttons, ground menus, dashboards for information display, and text display techniques. The document concludes by discussing usability testing methods in VR like those offered by the company Fishbowl.