This is an extensive library of clinical photographs which illustrate the mental retardation and malformation syndromes described in the London Dysmorphology Database. 11,230 images are captured in this Windows version - a 30% increase over the previous release. <P>All the photos are accessible from the London Dysmorphology Database and the relevant photos are accessible from the London Neurogenetics Database. <P>The CD-ROM includes colour photographs, black and white photographs, and X-rays, both from the collections of the authors and from publications cited in the database.