The Wonder Weeks featured in:

“The Wonder Weeks: One of our own personal favorites!” – the bump editors

“Breakthrough science reveals the true reasons of fussiness and weeks of wonders”

Interview with Dr. Frans Plooij

The Wonder Weeks Book

Order your copy today!

Based on 35 years of research, rewarded the Gold Medal by Mom’s Choice Awards and loved around the globe by millions of parents. Order your copy today or read more about the book.

Want to read The Wonder Weeks on your iPad? You can! The Wonder Weeks eBook is now available as an ePub and is available in the iTunes iBookstore.

Read The Wonder Weeks on your Kindle. The Wonder Weeks Kindle is waiting for you at the Amazon Kindle Store!

The Wonder Weeks Nook Book is now available in the Nook store of Barnes & Noble.

Buying a song instead of the whole album is normal. Buying a slice of pizza and not the whole pizza too. So why buy a whole book if you need just a part of it? Exactly! That is why we are introducing our chapter eBooks. From now on it is possible to buy just the information you need. Read more about eBook per Chapter

The Wonder Weeks Journal

How did YOUR baby make the leaps? What did he do? How did he react? Where did he like to look at? Best. Journal. Ever.

The Wonder Weeks

Get your own Journal Today!

The Wonder Weeks App

The Wonder Week app is a clever leap alarm in your pocket (but does not replace the book!)


Top doctors recommend this app on HealthTap


What Our Users Say

Many people talk about the Wonder Weeks, leaps, fussy phases and ‘stormy periods’. Parents, bloggers and (online) magazines have written many articles, comments, reviews and stories about The Wonder Weeks book and app. We want to share them with you!

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