: Provides an authoritative breakdown of terms like gender identity and gender expression from the American Psychological Association .
: Offers a global perspective on how various cultures, including Indigenous North American groups (e.g., Navajo nádleehi ) and African societies, have recognized fluid and third-gender roles for centuries. shemale vids gallery
: This is the largest and most comprehensive survey of transgender people in the United States, providing detailed data on health, employment, housing, and social experiences. : Provides an authoritative breakdown of terms like