The recently adopted German Competition Act brings about the most significant changes to German Competition law since the original Act's inception in 1957. It includes the abolition of the traditional distinction between horizontal and vertical restraints of trade, strengthened private antitrust enforcement, and the alignment of the German Act with the new European antitrust enforcement system. This new bilingual edition of the German Act makes it possible to understand the nuances of the Act by providing a precise and accurate translation, valuable commentary to explain the broader context of the law in practice, and relevant documents such as cooperation agreements.