The Grand Design: An exhibition tracing the evolution of the L'Enfant Plan and subsequent plans for the development of Pennsylvania Avenue and the Mall area, organized by the Library of Congress and the President's Commission on Pennsylvania Ave. By Thomas S. Kepler Books / Paperback Architecture & Design › Architecture Publisher: Library of Congress, January 1967 Price $20.85 Free Shipping Send to a friend Used - Very Good Very Good condition. Minor soiling on covers. (city planning, urban design, Washington DC, exhibition catalog) $20.85 1 in Stock at Warehouse Quantity Add Free Shipping to continental U.S. OR $1.00 per item discount if shipped to store.