This seminal book is the original and definitive text presenting Gender, Sex & Relationship Diversity Therapy (GSRD Therapy) as its own therapeutic rather than simply a set of techniques or "add on" to other modalities in working with LGBTQ+ clients and other marginalised populations.

This edited volume draws on the expertise of international clinicians who offer contemporary perspectives as well as modernising traditional psychotherapeutic theories. The book will first introduce the modality explaining the essence of GSRD Therapy: its history, its philosophy, its theories, what it is used for, and how it is practiced and will set the landscape for GSRD Therapy centred on its seven core components. It will focus on specific populations and themes that are prevalent in the GSRD communities, yet, often not written about or discussed in core clinical training, such as working with Queer and trans young people, parenting, working with serious mental health difficulties, and ageing and the end of life. It also covers topics such as neurodivergence, self-harm, and body image.

The book will be a critical resource for clinicians worldwide, particularly those working with, or interested in working with populations who do not fit the dominant "norm" of heteronormativity, mono-normativity and those who are gender-expansive.