This document provides an introduction to business law. It defines law as a set of legal rules that govern how members of society act towards one another. The importance of law is discussed, noting that laws regulate behavior and allow society to function in an orderly manner. The main branches of law are described as constitutional law, administrative law, criminal law, civil law, and commercial law. The scope of business law is broad, covering topics like contracts, agency, sale of goods, partnerships, companies, banking, insurance, and pollution control. Business law draws from several sources, including statutes passed by parliament, English mercantile law, customs, equity, and common law.