The Concentrate Questions and Answers series offers the best preparation for tackling exam questions and coursework. Each book includes typical questions, suggested answers with commentary, illustrative diagrams, guidance on how to develop your answer, suggestions for further reading, and advice on exams and coursework. This chapter discusses the company’s constitution, which can be a popular area for examination questions. The chapter focuses on the company’s articles of association, considering in particular alteration of the articles and the legal effect of the articles (the ‘statutory contract’). The chapter also considers shareholder agreements, which are often used as a supplement to the company’s constitution.