The book is your introduction to association law. It explains basic concepts, the fundamentals of association law, and the connections between the regulations of the Civil Code (BGB) for associations and other legal provisions of the BGB as well as other areas of law. Conflict situations with legal implications can quickly arise in associations, for example, when members fail to pay their dues, when the board disputes who is authorized to represent the association in certain cases, when members demand a general meeting out of turn, when an uninvolved spectator is injured by a member of the association, or when the association's premises have been rented out and the tenant fails to pay the rent. This list can be extended indefinitely. With the help of this book, you can categorize and better understand such conflict situations. Citations of court decisions have been omitted.