What is a book?

These images are from a calendar i made at college as part of my final project. I designed promotional advertising for Marks and Spencer Supermarkets and created a calendar, in store photos, promotional leaflets and coupons all based on seasonal eating. I am including this, as a calendar could be classed as a book as it is just a collection of dates (information) that is bound together and has images and text to inform and entertain.