Consists of architectural plans, drawings and proposals done by Treib individually and in collaboration with others. Many are submissions to design competitions. These projects include educational buildings, gardens and parks, memorials and sculptural installations. Among Treib’s collaborators are the architects Stanley Saitowitz and William Turnbull, and landscape architect Ron Herman. The subseries on book design includes correspondence, drawings, mock-ups and layouts. Treib’s graphic design materials include correspondence with clients, including Berkeley Solar Group, UCB, and architect Jeff Falkanger.