I spent a long time wondering which book had the line, "I love you like the moon at night, big and warm and round and bright." Then Mom and I went through a bin of old board books, and I discovered that it was this one.
Some family friends gave this board book to my younger sister when she was a baby, and we all enjoyed it very much. Even though there are a vast number of books about parents reassuring their children of their love before putting them to bed, this one has especially creative language, lots of charming pictures, and is more playful than saccharine. I highly recommend it.