In the present work Dr. Jayadeva Mishra has utilized the archaeological and literacy sources material bearing on the topic. He has made on the spot study at several sites in Bihar, which have yielded Buddhist figures in stone, bronzed and clay. Although, Buddhist art had grown in the area of Bihar before C. 600 A.D., it was during the period between 600 and 1200 A.D. that its all round development took place at sites like Nalanda, Kurkihara, Bodh-Gaya, Vikramsila, Tirabhukti, (Mithila and Vaishali) and several sites of Bihar. In this connection Dr. Mishra has made a meticulous study on the origin and development of Buddhist pantheon of Bihar and has also dealt with that of Nepal where ever it is found relevant. He has also dealt very clearly about the emanations of various Dhyani Buddha and Bodhisattvas which is a very interesting subject to deal with the scholar has well explained the subject based on the various traditional beliefs and ideas.