Expert guidance for child welfare and youth care professionals looking to increase their knowledge about, and skills in, working with transgender and gender expansive youth and their families. Many professionals working in child welfare and youth service (including line workers, supervisors, managers, and administrators), lack adequate knowledge about trans or gender expansive identities, which means they are not sufficiently prepared to address or respond to the needs of trans or gender expansive youth. This guide will provide readers with the information they need to do their jobs effectively with youth of all genders, including guidance on relationships, discrimination, mental health, foster care and homelessness. It provides examples of successful practice in a variety of case narratives from youth and their families.