This book of Reading covers every important aspect of the subject. In Part One there are two articles which demonstrate the way in which prices link together the scattered resources of nature with the widespread tastes of householders to form an integrated system. Part Two is devoted to the two main traditions in price theory: Marshall’s theory of value and the mathematical scheme of Walras. Parts Three, Four and Five are devoted to demand theory, cost analysis and market models. Part Six returns to general equilibrium analysis and includes the seminal work by Leontief on input-output analysis.