As diversity based on gender identity and sexual orientation remains a target for discrimination, exclusion, and violence in multiple contexts, it is necessary to advocate for comprehensive and quality sexuality and gender education to achieve equity and equality. This co-edited book provides a comprehensive reflection on how education professionals can foster inclusive education in terms of diversity based on gender identity and sexual orientation that impacts positively both LGBTIQ+ and non-LGBTIQ+ students. Promoting Inclusive Education Through the Integration of LGBTIQ+ Issues in the Classroom offers theoretical considerations and practical examples of how LGBTIQ+ issues can be addressed in education, including instances of curriculum responses, teacher training, and recommendations for supporting LGBTIQ+ students. Its target audience includes international teachers of all areas and educational stages, educators, curriculum developers, instructional designers, principals, school boards, academicians, researchers, administrators, and policymakers. The chapters cover theoretical background, practical examples, and guidelines and recommendations for LGBTIQ+-inclusive education policymaking. This book serves as a reference for anyone interested in making education more inclusive in terms of diversity based on gender identity and sexual orientation.