This research based book, a reference tool in totality, is an asset for all those working in the sphere of agricultural economics.The book covers all dimensions of crop production/productivity scenario in Uttar Pradesh across its four economic regions. In different chapters, inter -regional and intra-regional patterns & disparities in crop productivity, input use, factor-output relationship have been analysed. Treatment of the subject matter is analytical and presentation is methodical. The book is well documented and gives evidence of wide reading, coverage of facts and excellent elucidation of the subject. Dr.Sandeep Kumar, Professor & Head Dept.of Economics, D.D.U.Gorakhpur University, UP, India