The Wonder Weeks: A Stress-Free Guide to Your Baby’s Behavior

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(as of Dec 10, 2025 07:01:17 UTC – Details)

Everything a new parent needs to know about their baby’s 10 magical “leaps”―and when to expect them―in a new, modern sixth edition of The Wonder Weeks

The Wonder Weeks answers the question, “Why is my baby cranky, clingy, and crying?” with helpful guidance. Maybe they’re experiencing a leap in brain development, after which new skills are mastered, discoveries are made, and perceptions evolve. Fussy behavior might signal that great progress is underway!

Better yet, these phases occur on similar schedules for most babies―as explained and mapped out in this book―so parents can anticipate the “stormy weeks” that precede the “sunny weeks.” Based on decades of research, this fully revised sixth edition covers the first 20 months of a baby’s life and includes:

The top 10 things to know and remember about a leapFun games to support brain developmentFill-in-the-blank checklists to help better understand personality and behavior traitsScience-based explanations about sleepFresh insight and recent commentary from new parents who’ve used The Wonder WeeksAnchor moments to keep new parents sane, especially when they are exhausted and discouraged

With 2 million+ books sold, and 4 million+ downloads of the corresponding app, The Wonder Weeks has struck a chord. Join the phenomenon that has been embraced by celebrities, social media influencers, and parents worldwide.

Black & white illustrations throughout

From the Publisher

Join the millions of new parents who live by the leap with The Wonder Weeks

Get tips, ideas, and advice for every stage of your baby’s development

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Publisher ‏ : ‎ Countryman Press
Publication date ‏ : ‎ September 10, 2019
Edition ‏ : ‎ 6th
Language ‏ : ‎ English
Print length ‏ : ‎ 464 pages
ISBN-10 ‏ : ‎ 168268427X
ISBN-13 ‏ : ‎ 978-1682684276
Item Weight ‏ : ‎ 2.31 pounds
Dimensions ‏ : ‎ 6 x 1 x 8.8 inches
Best Sellers Rank: #21,395 in Books (See Top 100 in Books) #33 in Children & Adolescent’s Health #46 in Baby & Toddler Parenting
Customer Reviews: 4.7 4.7 out of 5 stars (3,372) var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });