Dad's voice-it's the one thing he can use to bond with baby when they're in the womb. First they'll hear a familiar sound. Soon they'll recognize it's his voice. And on the day they're born, he won't even have to say, "I'm your Dad." They'll just know. Dad-to-Bump is a beautiful love story for expecting dad to read to baby before they're born, and the beginning of a conversation that will last a lifetime.