The Architecture of Additions: Design and Regulation (Norton Books for Architects & Designers)
This is a very important book.  --Robert A. M. SternWith concision and clarity that laymen will appreciate, Byard covers virtually every scenario likely to be faced by practitioners, patrons and preservationists, including adding on to landmarks, retaining the character of historic districts and dealing with the tricky notion of architectural "context." --The New York Times Book Review, Martin Filler