#OwnVoices is a term that was coined by YA author, Corinne Duyvis. The term refers to books about characters from underrepresented/marginalized groups in which the author shares the same identity. The writing is inspired by the author's own experiences and written from their own perspective. The term started as a Twitter hashtag to make it easier to find own voices books in kids literature.
While own voices books are a good representation of the group they represent it's important to note that an own voices book is not representative of everyone that identifies within that particular group.
The Cooperative Children's Book Center at the School of Education at the University Wisconsin-Madison conducts audits on representation in children's literature. The latest report is from 2018 and the graphic below highlights their findings. More information on their research can be found here.