Preciado Martin is known for her work collecting oral histories from older Mexican-Americans. She has spoken about discrimination against Mexican-American women, and works to share stories of her heritage in order to keep it from becoming "homogenized". Preciado Martin has worked with photographers to combine oral histories with pictures of Arizona residents and Mexican American families. In her 1992 book,
Songs My Mother Sang to Me: An Oral History of Mexican American Women, she shared interviews of Arizona-area Mexican-American women who present different pasts. In 2000, her book,
Amor Eterno: Eleven Lessons in Love, shared the story of a woman who prayed for her son's return from war. Her 2016 book,
El Milagro and Other Stories, was adapted into a
shadow play presented in Tucson in 2016. == Selected publications ==