Hata and Ohnari team up to bring us the Play With Baby Picture Books from their own child-rearing experiences. They hope to convey how important it is for babies to have physical contact with their parents. The first book, Boo Boo Boo, has the theme of sound effects and breathing in a pattern. The second book, Squeeze Squeeze Squeeze, is about something familiar to babies that sounds just like the title: hugs for mom, a favorite stuffed animal, blankets, and more. The much-anticipated third entry's theme is hands―it's a tickle-a-long picture book.