From brain science to psychology and education—everything about parenting that's been proven by the latest scientific research to actually work! Every parent shares the same wish: to give their child only the very best. But for new parents, simply surviving the day-to-day reality of raising a child can already feel overwhelming. The author, who deeply understands this struggle, carefully reviewed authoritative scientific research from around the world—spanning brain science, psychology, and education—and distilled the parenting methods proven to be truly effective into 55 essential principles. Focusing especially on ages 0 to 5, the critical period when a child's potential is shaped, this book covers everything parents need to know: sleep training, potty training, and healthy daily habits; discipline tailored to a child's temperament and developmental stage; play methods that build creativity; and conversation techniques that boost IQ and vocabulary. This is the essential parenting guide for first-time parents, dads who feel completely lost when it comes to childcare, grandparents struggling with raising grandchildren later in life, and couples who disagree on parenting values—helping you raise a happy child with confidence and no regrets. #1 Bestseller in Parenting & Child Education on Amazon Japan Long-running bestseller on Amazon US The talked-about parenting book loved by moms and dads across the US and Japan Recommended by experts in education, psychology, and medicine as a must-read for new parents "No book ever solved my day-to-day parenting battles!" A veteran parenting journalist with 15 years of experience shares the 'ultimate parenting solutions' she discovered through real-life parenting struggles. The author, a veteran parenting journalist with 15 years of experience and editor of the world-renowned bestsellers Brain Rules and Brain Rules for Baby, had her first child in her mid-thirties. She attended prenatal classes and read countless books on pregnancy and childbirth, determined to be the most prepared mother possible. But once she faced the true realities of parenting, she realized that all her preparation counted for little. When her baby cried for no clear reason, she didn't know what to do immediately—should she let the crying baby be, or intervene? How should she handle tantrums and stubbornness? Exhausted and out of patience, she came to a painful realization: thick expert books and the endless flood of parenting information online didn't give her the immediate answers she needed for that day's parenting struggles. Determined to solve the worries and anxieties that every parent faces, she used her 15 years of journalistic expertise to seek out the 'ultimate parenting solutions'—practical, immediately usable methods with real, proven results. - Parents raising children tend to share the same worries. How can I get my baby to sleep? What's the secret to soothing a fussy baby? How can I breastfeed successfully? What should I do when my baby wakes up crying at night? What can I do to support my child's brain development? How do I maintain relationships with others while parenting? Should I let my child use a smartphone or computer? How should I discipline my child so they grow up happy and healthy... After our daughter was born, my husband and I marveled at her growth every day and lived through many happy moments—but just as often, we felt frustrated and worried, unsure of what to do. When we didn't know the answer, we searched frantically for solutions. We asked friends, asked my own mother, and scoured the internet for parenting information so thoroughly that my husband would shake his head in disbelief. In the end, we found ourselves buried in contradictory comments—'this method worked best for me' versus 'this did nothing for me'—and vague, inconclusive articles, which left us even more confused. At those moments, I would run to my bookshelf and dig through books on child development and parenting. My shelves were packed with reference materials I'd gathered while editing Brain Rules for Baby. Poring over those thick, jargon-filled books, I always arrived at the same conclusion: 'Wouldn't it be wonderful if there were a book where every single page offered trustworthy, essential parenting information, organized in an easy-to-read way?' - Ages 0 to 5: the critical period that shapes your child's future, based on the latest research from around the world.