The nations in the World are always divided into 3 Main brackets, and accordingly their population acquire their living standards, and shares the Prosperity and Poverty around. That division is Developed, Developing and Under-Developed. But, it is yet to see any Developing nations becoming Developed, and the Under-Developed one had moved up in the ladder toward Developing and Developed status, in the past one century (1900s to 2000s). The contents of this research Book establishes the method to accelerate the development by closing the gap existing between the two component pairs, namely Domestic investment- Domestic savings and Domestic technology-Domestic manpower, using a Geometric approach. These components in this Book is based on an elaborate Research and Development work of the Author, with a special orientation, aptitude and experience in the international Socio-Economic Development Institutions, with over 35 years of work experience in different parts opf the world.