Updated daily. Provides an index to over 300 of the world's most respected architectural periodicals as well as a catalogue of the books and audio visual materials held in the RIBA (Royal Institute of British Architects) Library, including the RIBA Library Photographs Collection, the RIBA Library Manuscripts Collection, and the RIBA Library Drawings Collection. Also includes a biographical database of architects. The RIBA's British Architectural Library is the largest and most comprehensive resource in the United Kingdom for research and information on all aspects of architecture. It is one of the finest collections of architectural material in the world. A wide spectrum of subjects, ranging from prehistory to the present, is encompassed by the collections, which are international in scope. In addition to architectural theory, practice and history there is material on allied subjects such as building and construction, civil engineering, structural engineering, landscape architecture, interior design and decoration, the decorative arts, town and country planning, and construction law.