The prospective client files concern prospective clients and interior design projects that were considered by William Pahlmann Associates. Their contents consist of correspondence, notes, drawings, photographs, and various ephemera. These files give researchers a sense of how Pahlmann's firm worked up bids and conducted business. They also provide some insight as to why potential clients chose not to use Pahlmann, why Pahlmann decided against doing some jobs, and the extensive communication that went on among professional interior designers.