Wiktionary
baby books
n. (baby book English)
Wikipedia
Baby books
Baby books are scrapbooks used by parents to track their children's development.
Usage examples of "baby books".
The house was filled with baby books, the guest bedroom -- once known as Doug's study -- had been painted pale blue and his desk and IBM PC hauled out in favor of a crib that had belonged to her grandmother.
Another thing the baby books didn't mention was that most women felt ten times worse during their second pregnancies.