Liturgy and Architecture: from the early church to the Middle Ages. By Allan Doig. 242mm. Pp xxii + 224, 49 b&w and 10 col ills. Aldershot, Hants: Ashgate Publishing Limited, 2008. ISBN 9780754652724. \\pounds55 (hbk). ISBN 9780754652748. \\pounds15.99 (Pbk).