Book excerpt: Volume III in the 'Studies in the History of Collection' series, published in association with the Beazley Archive in the University of Oxford. 14 papers on The Mechanisms of the Art Market 1660-1830 presented at a symposium at the Wallace Collection, London in December 2003. Contents: Introduction (Neil De Marchi); 1) The Art Trade and its Urban Context: England and the Netherlands compared, 1550-1750 (David Ormrod); 2) The Auction Duty Act of 1777: the beginning of institutionalisation of auctions in Britain (Satomi Ohashi); 3) The Almoneda: the second-hand art market in Spain (Mari-Tere Alvarez); 4) The Market for Netherlandish Paintings in Paris, 1750-1815 (Hans J. Van Miegroet); 5) Le tableau et son prix a Paris, 1760-80 (Patrick Michel); 6) The System Governing Appraised Value in Ancien Regime France (Alden R. Gordon); 7) The Marquis de Vasse Against the Art Dealer Jacques Lenglier: a case-study of an eighteenth-century Parisian auction (Francois Marandet); 8) Pierre Sirois (1665-1726): le premier marchand de Watteau (Guillaume Glorieux); 9) The Purchase of the Past: Dr Richard Rawlinson (1690-1755) and the collecting of history (John Cherry); 10) John Anderson and John Bouttats: picture dealers in eighteenth-century London (David Connell); 11) Sir Godfrey Copley as Patron and Consumer, 1685-1705 (David Mitchell); 12) The Rise and Fall of a British Connoisseur: the career of Michael Bryan (1757-1821), picture dealer extraordinaire (Julia Armstrong-Totten); 13) 'In Keeping with the Truth': the German art market and its role in the development of connoisseurship in the eighteenth century (Thomas Ketelsen); 14) Abraham Hume e Giovanni Maria Sasso: il mercato artistico tra Venezia e Londra nel settecento (Linda Borean).