This tunnel book is a little unusual because of its circular shape depicting the shape of our Earth. The book art is known already from 1800 hundreds when the books were popular as toys for children. What I like about the book art is that you don't necessary need to have drawing or painting talent. Book art is more about mechanical skills. Instead of pencil drawing you can use other technique like cutting and putting pieces together to form a book. With many cut outs and special tools available in craft store it can be easier than ever. To me its very similar to card making or scrapbooking.