A down-to-earth picture book shows a home in which a toddler delights in learning a new word, considers a fresh idea, and experiences a dependable wonder of the universe when her sibling shows her the full moon in the sky, and then helps stem her disappointment when the moon can't be seen again for a period of time. The fictional narrator can be either a brother or sister, unless readers pay attention to the book's flap copy suggesting the older child is a brother. Perhaps the family is Latino. Rereadings prove the warm sibling relationship within this low-key story to be as, or even more, important than a child's gender or the family's culture. The illustrations were created in cut paper collage. An outstanding book for both emergent and newly independent readers. (Ages 4-7)