akg-images represents the work of one of the art world's foremost photographers, Erich Lessing. His pictures chronicle a wide range of subjects including painting, sculpture, archaeology and architecture. To see more of his work, visit the Erich Lessing Culture and Fine Arts Archives at www.lessing-photo.com.

BAPLA (the British Association of Picture Libraries and Agencies) is the trade association of the stock picture industry which represents over 350 libraries in the UK: www.bapla.org.uk.

CEPIC (Coordination of European Picture Agencies) is a European Economic Interest Group representing the interests of over 900 picture agencies and libraries in Europe: www.cepic.org.

The Design and Artists Copyright Society (DACS - www.dacs.org.uk) is the copyright and collecting society for visual artists in the UK. Its reciprocal representation agreements with visual arts collecting societies throughout Europe and the rest of the world also means that it represents in the UK the copyright interests of artists from all over the world.

The Picture Research Association (PRA - www.picture-research.org.uk) is a professional organisation for picture researchers, picture editors, and anyone specifically involved in the research, management and supply of visual material to the media industry.