Felt books are all 6"x9". The cover can be made of any color. Below I have listed pictures of the colors that are available. You can also choose what colors the letters in the books are from these same pictures. Please list these things in your email to me. If you wish to choose your cover color and letter colors it will be 2 weeks before the book will be shipped and the shipping fee is $3. I will sometimes have books premade that you can order, if this is the case I will ship them within 2 days of getting your email order.