A very useful economic book about the Economic Thought and its impact in the real life (economy) during the last century. We consider an attractive and easy lecture for all those, specialists or not, who desire to know and to understand the importance of Economics in our day-to-day existence and its involvement in all activities and processes. The problem is to reveal the becoming of micro and, especially, macroeconomics, until the forms of today. Economics is a complex and multilateral science and art, supporting human activities and inter-relations within all components of the bio-socio-economic systems. We appreciate that the information presented is very useful, not only for economists, academicians, specialists in economics, but also for the rest of people acting or working in other domains of the communities'' life.