The collection consists primarily of Alexander's works as an architect. This includes building plans and specifications for work done for the Arriflex Corporation, Lowel-Light Manufacturing, and the Jack Tilton Gallery, as well as many other projects. The collection also includes blueprints for building designed by Alexander while working for the architectural firms of Wurster, Bernardi, and Emmons Architects and James Baker and Peter Blake Architects. Other materials include a curriculum vitae, correspondence, and an article about Alexander published in the San Francisco Examiner.