This talk will present some of the Radiance modeling Architectural Energy Corporation has done in support of our Daylighting Design Consulting work, focusing on the various ways we have used Radiance to guide the design process. Radiance has proved to be extremely effective in analyzing and visualizing daylighting designs, allowing numerous daylighting design alternatives to be explored beforehand, informing and guiding the daylighting design decisions of a project. The types of daylighting design projects that will be highlighted vary widely and include schools, laboratories, offices, museums, atriums, and various other types of spaces. The focus of the presentation will be on newer work that has occurred since the Berkeley Radiance conference.