The Archives of the History of American Psychology (AHAP) is a department of University Libraries at The University of Akron. The AHAP promotes research in the history of psychology by collecting, cataloging, and preserving the historical record of psychology. The collection included here contains materials related to spatial tests and spatial intelligence. The Nature and Measurement of Spatial Intelligence is an unpublished manuscript by John Eliot. An International Directory of Spatial Tests is a reference book edited by John Eliot and Ian Macfarlane. The Finding Aid for the Eliot Spatial Test Collection describes the matierals included in the John Eliot Spatial Test Collection on deposit at the Archives of the History of American Psychology. The Eliot Spatial Research Database is a reference tool that provides bibliographic information on spatial intelligence.