Most picture books sell from 5,, copies in hardcover and go out of print within two years. Hannah Holt. It’s difficult to get published, and you’ll face a lot of rejection. But at the same time, you might make a similar amount through a direct-to-reader sales page, without having to print so many books upfront. You can even drop the f-bomb, if you’re so inclined, provided you’re writing for teens and your name isn’t Laura Ingalls Wilder. It is not necessary to copyright your work if you are planning on submitting it to a traditional publishing house. Make sure your phone number and email address are on your cover letter and hang in there!