- A Prisoner’s Life in Abu Ghraib15
- A. Quincy Jones Papers, 1942-197923
- AIDS Posters Collection1,438
- AIIS Center for Art & Archaeology Negatives & Slides2,974
- ARPANET Project Notes31
- Acción Socialista (La) : Periódico sindicalista revolucionario26
- Adams (Peggy Hamilton) Papers544
- Adelbert Bartlett Papers, 1922-19506,491
- Afri-Comics11
- Africa Collections345
- Ahmanson-Murphy Aldine and Early Italian Collection1
- Albanian Photographic and Graphic Art Collection18,031
- Aldous and Laura Huxley Papers, 1925-2007667
- Alexander Klemin Papers, 1900-19502
- Allan (Maud) Papers. Collection 20385
- Allied Architects Association of Los Angeles Records3
- American College of Neuropsychopharmacology1
- Ammen (Daniel) Papers, 1836-18982
- Andrew Hamilton Papers, 1940-197418
- Arab Image Foundation Photo Negatives2,243