One of the most influential social scientists of the 20th century. Three items: glossy 4 x 5 close-up photo, signed in black felt tip; ballpoint signature, “Herbert A. Simon, with best wishes, 18 June 1996,” on a beige 4 x 3 bookplate; and a Carnegie-Mellon business card, signed in black ballpoint. Moderate contrast to the light signature on photo, otherwise fine condition. RRAuction COA.