Abstract: This casebook on the law of sexual orientation and gender identity weaves interdisciplinary perspectives into the up-to-date coverage of a rapidly changing legal landscape. It provides comprehensive coverage of the range of legal issues concerning LGBTQ persons, along with scholarly commentary on these issues. It also covers issues of sexuality and gender more broadly. It addresses in depth many significant recent developments, including the Supreme Court's landmark decision interpreting the Civil Rights Act of 1964 as prohibiting discrimination on the basis of gender identity and sexual orientation, and the growing set of religious liberty claims asserted by opponents of LGBTQ equality measures. The book also extensively covers gender identity issues, including the challenges faced by transgender individuals in accessing sex-segregated facilities, adequate healthcare, and equal educational and athletic opportunities.