Books:
My Body Belongs to Me (Starishevsky)
I Said No! (King)
It's Not the Stork!: A Book About Girls, Boys, Babies, Bodies, Families, and Friends (Harris) ages 4-8
It's So Amazing!: A Book About Eggs, Sperm, Birth, Babies, and Families (Harris) ages 7-10
It's Perfectly Normal: A Book About Changing Bodies, Growing Up, Sex, and Sexual Health (Harris) ages 10+
Resources:
SecondStep.org → Activation Key: CPU1 FAMI LYG1
Parent Toolbox for starting safety conversations at home
K-5 Book List recommendations for promoting personal safety