Epiphyllous Liverworts of Eastern Himalaya provides a comprehensive taxonomic account of 89 taxa of liverworts belonging to orders Metzgeriales [07 species and one variety in a single genus and family], Porellales [75 species and one variety in 16 genera and 04 families] and Jungermanniales [05 species in 02 genera and as many families] that colonize the leaf surface of vascular plants in the states of Arunachal Pradesh, Sikkim and Darjeeling subdivision of West Bengal. Identification keys at different taxonomic hierarchy have been provided and each species, or the infraspecific taxon, is immaculately illustrated with the help of camera-lucida drawings and photomicrographs.