Sex is a Funny Word, by Cory Silverberg

What Makes a Baby, by Cory Silverberg (Reproduction)

I Am Jazz, by Jazz Jennings (Gender identity; transgender)

And Tango Makes Three, by Justin Richardson and Peter Parnell (Sexual orientation; family)

Heather Has Two Mommies, by Lesléa Newman (Sexual orientation, family)

In Our Mothers' House, by Patricia Polacco (Sexual orientation, family)

ABC: A Family Alphabet Book, by Bobbie Combs (Sexual orientation, family) 

Be Who You Are, by Jennifer Carr (Gender identity)