Set of 2 books Learning materials that children who love trains can learn enjoyably Hiragana: 98% filled in Numbers and Clocks: 50% filled in (Clocks section is mostly unfilled) Mostly pencil, but a few pages use pen. There are many train pictures and photos, making it interesting to look at. How about these for someone who doesn't mind that they are filled in, or someone who wanted to see the inside?