I really like the chart on page 20 about how many rejections famous authors have gotten for books that made them famous. This really shows that it's not about how good you are, it's about how your book appeals to certain people. Today, my former English professor posted about being displeased with the idea of a sequel to To Kill a Mockingbird because "it wasn't that good." At the same time, almost everyone I've met here was required to read it in high school, so that shows how different people's opinions can be, even if they're equally educated in literature.
The creative writing teacher at my high school was trying to get a book published at the time I had her for a different class. Each time she got a rejection letter, she wrote the number of rejections in red ink across the letter and taped it to the wall. Underneath those letters was a banner that said "PERSEVERANCE."
In the attached photos, anyone in the US or the UK knows what my friend and I are wearing. Some could even guess our personalities. How many publishers didn't see that one coming? The second is an image of the book cover of Catcher in the Rye. A lot of people don't like that book and it also got rejected multiple times.