This volume is intended as information for those concerned with the conservation and restoration of stained glass windows, such as church boards, architects, glazers and contractors. The first part contains a number of general principles for the conservation of stained glass. It is an edited translation of such principles published by ICOMOS. The second part contains more specific guidelines, adapted from The do's and don'ts about stained glass windows by Virginia Raquin, published by The census of stained glass in America. -- CAL