The book "The Invisible Hand", by the economist Adam Smith, consists of 6 chapters that have been extracted from the famous author's book: "The Wealth Of Nations" (1776). In this books Smith discusses the nature of commercial and financial exchanges, suggesting guidelines in the liberalism vision which, according to him, are beneficial to the development of state and society. Besides that, the author explains the free market behavior and introduces the term "the invisible hand". The invisible hand is a metaphor for the unseen forces that move the free market economy. Through individual self-interest and freedom of production and consumption, the best interest of society, as a whole, are fulfilled. The constant interplay of individual pressures on market supply and demand causes the natural movement of prices and the flow of trade. Description from Pocketbook4you.com and Investopedia.com.