The present title Flora of Barak Valley, Assam with their Economics Utility is a pioneer floristic work on the valley particularly on Herbaceous Flora. The present book provides the Historical and Geographical features vegetation pattern, materials and methods along with detail taxomic treatments of the collected species. The unique features lies in providing economic utility of the collected species based on field data and comparison with the established report of utility. The book also exhibits analytical drawings and field photographs for a vast majority of collected herbaceous flora. In the present title, a total of 596 species belonging to 142 families of Herbaceous flora have been enumerated, out of which 83 species having 34 families represent Fern & Fern-allies and rest 513 species with 108 families belong to Angiosperm