The book tries fully to Explore the role of Party System prevalent in Ethiopia in the Parliamentary arrangement. It explores the inter-organ political dynamics with the prevalent single party dominated system. The work is a precious asset for further research and academic discourse as well for politic opportunity in the Country. It is an excellent work of the author to which similar works are not issued till presently while party politics is the main issue in the country. It is very much evident that the author has ample academic asset to contribute in the academic arena with many publications. It is very exiting for readers of this book that the work is very net. It is very impressive to see that concepts of federalism and separation of powers are precisely explored with party system in Ethiopia.