Knock! Knock! Groovy Joe, the fun-lovin', guitar-strummin' easy goin' doggy is back and ready to disco party with you . . . and a whole new math-lovin' doggy crew !

Groovy Joe is totally fun.He's a tail-wagging, song singing party of one!And he rocks like this:Disco party bow wow!#1 New York Times bestsellers Eric Litwin and Tom Lichtenheld are back again in another groovy story that will have little ones singing, dancing, and learning math to a whole new beat. In his second adventure, Groovy Joe has a disco party. But Oh no! More and more doggies are knocking on his door, asking to come in. Will there be enough room for everyone? Luckily Joe knows just what to do and soon enough he everyone moving and grooving -- the party has only just begun!Signature rhyme, repetition, and musical writing style, combined with wild and witty illustrations infused and gentle math concepts come together to create an unforgettable new Grooy Joe story all about positivity, creativity, math, and kindness. Groovy Joe is back, ready to get groovy!