The book under review deals with economic integration among developing countries from the point of view of planning. The author believes that it is useful to approach economic integration from a planning point of view and to develop planning models for it, because the theory of economic integration relevant for developing countries should be directed towards the impact of integration on future investments and future production. The type of models used in the book are the multisector linear programming models and the method of analysis is essentially a comparison of two situations; one with economic integration and the other without. For each prospective participant a medium term planning model is drawn up taking account of its economic situation in some base year. The results of these single country planning models are analyzed and compared to those of a similar planning model for the integration area as a whole. The consequences of the integration policy are then evaluated.