Whoo Whoo! Can you hear the whistle blow? All aboard! It's time to go! Children are fascinated by things that go—cars, trucks, planes, boats, and trains. In Baby Einstein's "Let's Go", your baby will delight in learning about all the things that go. This exhilarating padded board is filled with eye-catching real life photos and delightful text that you and your child will want to read again and again.