Right now， an estimated 4-5% of people are engaged in consensually nonmonogamous relationships， while 20% of people explore consensual non-monogamy at some point in their lives。 Yet there is still next-to-no guidance for therapists seeking to work with this marginalized population。 This is the first practical how-to guide to nonmonogamy for therapists。 It contains everything a therapist needs to know to start working confidently and competently with polyamorous clients。 It covers both the most common challenges and the most complex and difficult situations likely to present in the therapy room。 In addition， worksheets and checklists are included to help guide therapists。