This collection consists of various materials collected and produced by Katherine Krebs, an Event Manager and Communications Analyst responsible for many of the AIDS conferences and conventions held in San Francisco in the 1980s and 1990s. Included in this collection are event materials, handouts, logistical planning documents, daily planners, photos, color slides, audio tape cassettes, and VHS tapes. Audio tape cassettes make up the majority of this collection and are recordings of lectures and events from the 2nd, 4th, 6th, 7th, and 8th National AIDS Update Conferences held between 1988-1996 in San Francisco. The VHS tapes pertain to the Gay Games held in 1986 in San Francisco, including promotional videos and video taping of the Opening Ceremony and Closing Ceremony. Paper materials related to the 6th International Conference on AIDS that was held in San Francisco in 1990 are also included. This collection offers a detailed look into the planning that went into the AIDS conferences and events that shaped the national and global response to the AIDS epidemic.