This report was prepared by a panel appointed by the British Technical Committee of the Illuminating Engineering Society to examine the problems associated with lighting in art galleries and museums. Topics covered are as follows: Lighting and conservation; Lighting and display; Design of daylighting systems; Designs of artificial lighting systems; Lighting of showcases; Lighting of specific classes of exhibit; Lighting of ancillary areas; and, Electrical installation--maintenance of lighting equipment. -- CAL