I wrote to the brilliant Albert Brooks on August 1st 2014, enclosing 2 photos, an LOR and an SAE with US stamps. On 26th September I received both photos, signed and personalized. Thanks Albert!
Address used as per db:
Albert Brooks
Gursey, Schneider & Co. LLP
1888 Century Park East
Suite 900
Los Angeles, CA 90067-1735
USA