This book provides a concise overview of sexuality and gender identity in clients with intellectual disabilities for therapists, social workers, educators, and healthcare providers. It captures the social, political, and legal environment of the late 2010s and bridges the gap between research and practice, with engaging case examples drawn from the author's own practice. Guidance on everyday issues like dating and sex education is juxtaposed with material on complex, current issues in topics like LGBTQ inclusion and sexual offending. User-friendly "toolboxes" provide brief guides to practical issues like using trans-friendly language and providing family interventions. Accessible enough for students and trainees, but thorough enough for veteran clinicians, this book explores issues that professionals face in providing competent care through the lens of justice and inclusion.