Picture Researcher's Association: www.picture-research.org.uk   American Society of Picture Professionals: www.aspp.com   Thames and Hudson: www.thamesandhudson.co.uk   Laurence King Publishing: www.laurenceking.co.uk   Phaidon Press: www.phaidon.com   Blackwell Publishing: www.blackwellpublishing.com   Penguin Books: www.penguin.co.uk   Prentice Hall: www.prenhall.com   Prince Claus Fund for Culture: www.princeclausfund.nl   English Heritage: www.english-heritage.org.uk   Headline Book Publishing: www.hodderheadline.co.uk   Lucy Jane Batchelor, designer: www.lucyjanebatchelor.me.uk