In this guide, readers will learn everything they need to know if they want to establish or manage an association, join one, or become active within it. In particular, the different organizational forms that must be included in the bylaws, as well as additional regulations, are discussed. The rights and obligations of members, the appointment and scope of action of the board, the calling and conduct of meetings, motions, resolutions, registration with the commercial register, and associated costs are also addressed. Numerous templates facilitate daily association work. In the 13th edition, the information on tax law and the explanations regarding the accounting of associations have been further expanded and updated. Following various financial scandals, tax-privileged associations are increasingly coming under scrutiny regarding their tax obligations by the tax authorities.