The most essential ingredient in a Library Book Bag is something that marks it as uniquely for library books, right?
i had a brilliant (humble as always) idea to make a block that's a library icon, and made it in illustrator, and made the whole block, and about halfway through, realized that I made the paper pattern backwards. Oh well. I finished it as it was, and then flipped it in Photoshop.
Hooray for Photoshop! Now the book is ready to read!