The two volumes summarise significant contributions of sixty-seven winners of Nobel Memorial Prize for economic sciences during 1969 to 2010. The contributions are under seven major heads General Equilibrium Theory Macroeconomics Microeconomics Financial Economics Interdisciplinary Research New Methods of Economic Analysis: Econometrics etc. and Game Theory. Besides covering their main contributions the volumes also provide a short biographical sketch of each of the winners in order to make the reader appreciate the progress over time of each of them in some cases the hardships they had encountered and privations they had to pass through. A select bibliography of work of each of the winners is also given to help further studies.