Start with high-confidence new baby books, then narrow by subgenre or adjacent topics.
What to Expect When Mommy's Having a Baby
Heidi Murkoff
On the Day You Were Born
Debra Frasier
Welcome to the Big Kids Club
Chelsea Clinton
The New Baby
Fred Rogers
It's Not the Stork!
Robie H. Harris
What's in There?
Baby Signs
Joy Allen
Nine Months
Miranda Paul
Before You Were Here
Scott Westerfeld
My First 100 Signs: Baby Sign Language Book
Lane Rebelo
Be Brave, Be Brave, Be Brave
F. Anthony Falcon
Playtime!
Mama Makes Books
My Book of Firsts
Lee Wardlaw
My First Book of Baby Signs
Noisy Babies
Lauren Crisp