While I was on maternity leave I suddenly decided to see what books were out there that could help me teach my daughters (one's three years, and the other six months old) about the science and the thrill of space exploration. I bought a pile of them, finding a few that I really enjoyed. I reviewed two of them (Faces of the Moon and Cars on Mars) for the most recent issue of The Planetary Report (we always run a bunch of book reviews in our ....