This book begins with an introduction to economics highlighting the economic problem of scarcity and choice. Further, it goes on and discusses the scope of economics as well as acquaints the students with the methodologies of economics. Basic microeconomic concepts such as demand, supply, competitive market equilibrium, elasticity and indifference curve analysis of demand have been explained in a simple and lucid manner. The book also dwells into theories of production, distribution, rent, interest and profits. It also discusses the market structures prevailing in the capitalist economy, namely, perfect competition and imperfect competition; thoroughly highlighting the sub categories of imperfect competition such as monopolistic competition, oligopoly and monopoly. Concepts of average revenue and marginal revenue have also been discussed in the book.