The updated version of the book includes much additional information on Indian, African, and Southeast Asian Commelinaceae, and represents the culmination of 15 years of research. The new information includes the description of a new generic section, 12 nomenclatural and taxonomic novelties, 13 new synonyms, and typification of 108 binomials. The book accounts for 516 binomials, which are treated under 131 recognised taxa. The inclusion of 100 illustrations and photographs will greatly assist with identification of plants in the field.