There are 4 books in the The ParentData series. The newest book is The Unexpected which came out in 2024.

1
Expecting Better

Book cover of Expecting Better
"Emily Oster is the non-judgmental girlfriend holding our hand and guiding us through pregnancy and motherhood. She has done the work to get us the hard facts in a soft, understandable way." -Amy Schumer

*Fully Revised and Updated for 2021*

What to Expect When You're Expecting meets Freakonomics: an award-winning…
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2
Cribsheet

Book cover of Cribsheet
'Emily Oster is the non-judgemental girlfriend holding our hand and guiding us through pregnancy and motherhood. She has done the work to get us the hard facts in a soft, understandable way' Amy Schumer

Parenting is full of decisions, nearly all of which can be agonized over. There is an…

3
The Family Firm

Book cover of The Family Firm
The instant New York Times bestseller!

“Emily Oster dives into the data on parenting issues, cuts through the clutter, and gives families the bottom line to help them make better decisions.” –Good Morning America

“A targeted mini-MBA program designed to help moms and dads establish best practices for day-to-day operations."…

4
The Unexpected

By Emily Oster , Nathan Fox,

Book cover of The Unexpected
From the New York Times bestselling author of Expecting Better, a guide to navigating a second pregnancy when the first did not go as planned—with Dr. Nathan Fox, maternal-fetal medicine specialist

In Expecting Better, Emily Oster revolutionized the pregnancy landscape with her data-driven approach. In the years since, she kept…