Bundling is pervasive in today's markets. However, the bundling literature contains inconsistencies in the use of temis and ambiguity about basic principles underlying the phenomenon. The literature aiso iacits an encompassing dassification of the various strategies, dear ruies to evaiuate the legaiity of each strategy, and a unifying framework to indicate when each is optimal. Based on a review of the marketing, economics, and iaw iiterature, this artide deveiops a new synthesis of the fieki of bundiing, which provides three important benefits. First, the articie clearly and consistentiy defines bundiing terms and identifies two key dimensions that enabie a comprehensive ciassification of bundiing strategies. Second, it fbrmuiates ciear ruies for evaiuating the legaiity of each of these strategies. Third, it proposes a framework of 12 propositions that suggest whk:h bundiing strategy is optimai in various contexts. The synthesis provides managers with a framework with which to understand and choose bundiing strategies, it aiso provides researchers with promising avenues for further research.