I have about a thousand photography books in my library which probably contain an average of 150 images. There are, no doubt, tens of thousands of images that I have only glanced at and then ignored. As I've recently been thinking about this, I've gone back and looked at some of those ignored images. I've been pleasantly surprised how many of them are far better than I originally thought. It's not that they were unworthy of being published, but rather that I was not prepared to understand them.