This chapter provides an overview of the work’s contents: overview of English company law, the context in which it has developed, its purpose and history, controversy over company law and its fundamental nature. Introduces the idea of a company as a separate, artificial person capable of owning property, being a party to contracts, and being a claimant or defendant in legal proceedings. Discusses other main themes that recur in the book, including ownership and control of a company and corporate governance, corporate finance, transparency and disclosure, the distinction between public and private companies, and picking up the pieces after things go wrong. Deals with the nature of corporations in general and companies in particular; differences between incorporated companies and two other legal forms used by businesses, partnership, and sole proprietorship; the sources of company law in statute, case law, and European law; and the purposes company law should serve.