Cribsheet: A Data-Driven Guide to Better, More Relaxed Parenting, from Birth to Preschool (The ParentData Book 2)

Cribsheet: A Data-Driven Guide to Better, More Relaxed Parenting, from Birth to Preschool (The ParentData Book 2)

by Emily Oster

4.6 (7,039)

4.6 stars from 7,039 reviews. One of the highest rated Nonfiction books we track.

352 pages~5.9 hr readPublished by PenguinPublished 2019-01-01

$7.9947% off peak

Last checked: Jul 1, 2026

Price history: $1.99 $14.99

While not the biggest discount we've seen for this book, it's still a great deal and we recommend grabbing it before price returns to its normal range.

Price range: $1.99 $14.99

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Fans of these authors will like this...

  • Malcolm Gladwell
  • Freakonomics authors (Steven Levitt & Stephen Dubner)

Fans of these books will like this...

  • Expecting Better
  • The Freakonomics of Parenting

Perfect for you if...

  • You're drowning in conflicting advice from family, friends, and the internet, and you want someone to cut through the noise with actual evidence.
  • You're the type of parent who wants to understand the trade-offs rather than blindly follow a rule, and you appreciate a writer who explains her reasoning.
  • You liked Expecting Better and want Oster's same clear-eyed approach applied to the sleep training, feeding, and schedule questions that keep you up at night.

Maybe not for you if...

  • You want parenting advice that feels warm and affirming rather than analytical, and data-driven reasoning doesn't comfort you.
  • You're looking for a one-size-fits-all answer, because Oster's whole point is that there often isn't one and that's okay.
  • You prefer parenting books that focus on emotional connection and instinct over research studies and statistical trade-offs.

About this book

From economist Emily Oster, author of Expecting Better and The Family Firm, comes a data-driven guide to decision-making in the early years of parenting. Parents face an abundance of often-conflicting advice about feeding, sleep, schedules, and countless other choices. Conventional wisdom suggests certain decisions are critical, but Oster examines the evidence behind these claims. Drawing on data, she addresses common topics including breastfeeding, sleep training, potty training, language development, returning to work, toddler discipline, and maintaining relationships while parenting. Oster finds that much conventional parenting wisdom does not hold up under scrutiny. She explores how parents can think through major decisions and trade-offs to determine what works best for their own families. Written by a trained economist and mother of two, Cribsheet applies economic thinking—the science of decision-making—to help parents navigate the early years with less anxiety and better information.

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Kindle price over time. Green zones = periods when the book was free.

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Free$7.50$14.99Mar '20Nov '22Mar '25Jun '26
$1.99$14.99

Currently on sale at $7.99 — 47% off peak. Price has dropped 6 times over the last 6 years. Goes on sale roughly every 285 days. Typically stays discounted for 10 days.

Sales Rank

Amazon sales rank: lower number = better selling book. #1 is the bestseller.

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#3,729#99,601#195,473Aug '18Apr '22Dec '23Apr '26

Currently #9,228 in the Kindle store — a top-10K bestseller.

Rating & Reviews

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4.0★4.5★5.0★May '23Nov '23Jul '24Jun '26RatingReviews

Currently 4.6★ from 7,039 reviews

Gaining approximately 55 new reviews per month. Steady word of mouth growth. Rating has dipped slightly from 4.7 to 4.6.

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Free$7.50$14.99Mar '20Nov '22Mar '25Jun '26PredictedJun '26

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Emily Oster

1 book on Vagrant Press

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