This book describes the development on the theory of solutions in the cooperative games. Certain developments took place in the sixties and seventies. However the subject had a few interesting developments in the eighties though those developments were not studied enough during that period. However the author and a few others took notice of those developments and added considerable amount of knowledge to the area. The present monograph is a record of those contributions to the subject of Cooperative Game Theory. The area is still active and more developments and addition to knowledge is expected in the near future. This book is suitable for Master degree level students as well as the researchers. Some of the results and the proofs are from first principle and suitable for inclusion into a Master Degree program.