#1 NEW YORK TIMES BESTSELLER - Ms. Rachel brings her signature teaching style to her very first book! Children will practice more than 20 important milestones--including gestures and speech--and sing their favorite songs as they help Ms. Rachel find a special surprise just for them.Ms. Rachel is looking for something very special, and she needs your help finding it!Using educational techniques from her beloved YouTube channel and threading them into an interactive story, Ms. Rachel shows kids and parents alike fun ways to engage and play! While Ms. Rachel invites readers to open a series of imaginary boxes to see what's inside, she guides them through exercises like pointing, waving, and call-and-response. Fans will recognize characters from their favorite videos, and everyone will join in on singing the lyrics to songs like "The Wheels on the Bus." After the adventure ends, parents and educators can use the helpful tips included in the back of the book to assist with brain and language development. Kids are sure to read and reread this new classic! There's plenty to keep them delighted and engaged with their favorite teacher. And, as always, she makes sure they know just how special they are!