This corpus of drawings came from the architect's personal collection and the contents of his office, following his sudden demise. The vast trove includes correspondence, project files, models, etc. The catalogue raisonné includes Kahn's catalogue number, unbuilt projects, clients, landscape drawings, earliest dated renderings, and working drawings. The catalogue is in chronological order by date when a building or project was begun, with the information divided into four parts: factural material based on research of Kahn's collection and staff (for the personal and office correspondence), catalogue information, transcriptions, and the repertory of drawings. Entries cite stage of realization, aspect treatment, drawing medium, print medium, dimensions, support, and date if known.