What size are the books? May 20, 2021 17:21 You may choose from two options: 8 x 8 inches or 8.5 x 11 inches. Both sizes are hardcover. Related articles How many pieces of art can be in a book? Are the books hard cover or soft cover? What is the difference between an Artkive Box book & a DIY book? Can I put more than one piece of art on a page? How do I estimate how much my book(s) will cost?