Apparently the make up of girls and boys is a whole lot more complicated than that old rhyme could begin to explain. An older man who I assumed to be a group of children's grandfather, makes up new verses for it that highlight how multifaceted children are, irrespective of their gender. Sonja Wimmer's illustrations are a wild and wonderful celebration of this. Sarah Tsiang's text is written in rhyming verse that works. It was a delight to read out loud.