The Key Facts series is a practical and complete revision aid that can be used by students of law courses at all levels from A-Level to degree and in professional and vocational courses. The Key Facts series is designed to give a clear view of each subject. Most chapters open with an outline in diagram form of the points covered in that chapter. The points are then developed in a structured list form to make learning easier. Supporting cases are given throughout by name and, for some complex areas, facts are given to reinforce the point being made. The Key Facts series aims to accommodate the syllabus content on most qualifications in a subject area. Company law may be a module of both law and business studies degree courses. It is also a vital subject in many professional and vocational courses. The detail and complexities of the subject can make it difficult for the student. The primary purpose of this book is as a revision aid and it is intended for use in conjunction with other, more substantive text books. The Companies Act 2006 received the Royal Assent on 8 November 2006. This is a major piece of legislation, running to some 1,300 sections, and is the result of the Company Law Review which set out to modernise and simplify company law. Almost all sections of the Act are in force, following the final commencement date of 1 October 2009. For full details of commencement see the Department for Business, Innovations and Skills (BIS) website. In this book the Companies Act 2006 is treated as if fully in force.