The collection consists of photographs, picture postcards, printed ephemera and other printed material collected by Alfred E. Heller documenting international fairs and exhibitions held around the world between 1851 and 2005. Photographs, picture postcards, and printed ephemera depict the locations and attractions of individual fairs and exhibitions, particularly those held in Europe and America during the late nineteenth and early twentieth centuries. Highlights include: photographs of the Paris Universal Exposition of 1878 taken by Hippolyte Auguste Collard and photographs of the Exposition universelle de 1889 (Paris, France) taken by the Neurdein Brothers. Files of printed material relating to late-twentieth century fairs and exhibitions document aspects of the planning, promotion and publicity associated with each. Extensive documentation can be found for the Louisiana World Exposition (1984: New Orleans, Louisiana), Expo 86 (1986: Vancouver, British Columbia), Expo '88 (1988: Brisbane, Queensland), Exposición Universal de 1992 (1992: Seville, Spain), Expo '98 (1998: Lisbon, Portugal), and Expo 2000 (2000: Hannover, Germany), among others.