My Grandma sent these books to us last Christmas, but Timothy didn't quite have the coordination until a few months ago. Now that he understands the concept and can manipulate those little Cheerios, he loves to have quiet time with his Cheerio books.
This is really a great little set of books. They keep the kids entertained and quiet, and they are learning motor skills and search-and-find techniques, since only some places are missing Cheerios.
There are several books, each with a different central theme.
I would definitely buy these for anyone with an 18 month-3 year old child.