Sexuality remains a neglected and largely taboo area within practice, but it can be a demanding aspect of social work. Social workers may be familiar with the importance of issues such as racism and ethnicity, but sexuality is also a very significant part of people′s lives, closest relationships and sense of identity. This valuable resource introduces the topic, using a combination of perspectives to consider sexual diversity and examining related issues across the life course, including sexual orientation, disability, HIV, sexual abuse, mental health and sexual exploitation.