Most social scientific work on intimate relationships has assumed a monogamous structure, or has considered anything other than monogamy only in the context of 'infidelity'. Yet, in recent years there has been a growing interest among researchers and the public in exploring various patterns of intimacy that involve open non-monogamy. This volume gathers contributions from academics, activists, and practitioners throughout the world to explore non-monogamous relationships. Featuring both empirical and theoretical pieces, contributors examine the history and cultural basis of various forms of