Dot to Dot for Tiny Tots

Avoid using the pen! It gets on everything and does not clean off easily - either on the book itself (I had to use a baby wipe), on skin or on clothing, quite honestly a nightmare for a mother of a two year old. I find it bizarre that someone thought it was a good product to go with this book.The book itself looks good but until I find a pen that fulfills my requirements I'm not letting my daughter anywhere near it which is a great disappointment.