Originally published as a three-volume set that is now out of print, this DVD-ROM collects this work in PDF format. It shows about 1,250 moss taxa of Europe, illustrated with more than 10,000 colour photos, that show habitats in the context of the landscape, as well as macroscopic and microscopic images of the most important morphological details. Each page is labelled with species name and any synonyms, as well as the location where the photos were collected. Beyond that there is no descriptive text, the photographs are self-explanatory.