Exhibition catalogue. The Stuff That Matters. Textiles collected by Seth Siegelaub for the Centre for Social Research on Old Textiles. Raven Row, London. 1 March to 6 May 2012. Curated by Sara Martinetti, Alice Motard and Alex Sainsbury. This publication complements the first exhibition of the csrot Historic Textile Collection by considering the biography of its founder, Seth Siegelaub, whose lifelong interests, besides conceptual art practice and the politics of communication, include the social history of hand-woven textiles.