This textbook provides an accessible and comprehensive introduction to the field of lesbian, gay, bisexual, trans, intersex and queer psychology. Designed for undergraduate students taking LGBTIQ+ psychology, psychology of sexuality, or related courses, it includes pedagogical features to support learning and to facilitate discussion.

Sonja J. Ellis is Associate Professor in Human Development at the University of Waikato, Aotearoa/New Zealand. She is also an Associate Fellow of the British Psychological Society and a Senior Fellow of the Higher Education Academy. In a career spanning more than 20 years and three countries (the UK, Australia and New Zealand), she has published widely in the field of LGBTIQ+ psychology, bringing her knowledge of the field to teaching in psychology, counselling and education.

Preface; Part I. History and Context: 1. LGBTIQ psychology in context; 2. Theoretical and methodological perspectives; 3. Sex, gender, and sexualities in psychology; Part II. Identities and Diversity: 4. Gender diversity; 5. Sexual and gender identities; Part III. Lifespan Changes to Families and Relationships: 6. Children and parenting; 7. Assisted reproductive technologies; 8. Relationship recognition; 9. Ageing and chronic illness; Part IV. Health and Marginalisation: 10. Prejudice, discrimination, and mental health; 11. Sexual health; 12. Challenges and opportunities to health and wellbeing; 13. Ongoing resistance to inclusion; Glossary; References; Index.