A publisher’s proof is basically the same as an artist’s proof except that there are even fewer of them produced. They provide an even more exclusive opportunity for a collector to own something very unique. Publisher’s proofs usually sell for the same price as artist’s proofs or perhaps slightly more. Traditionally, publisher proof edition sizes are very small - usually 20 prints or fewer. They are usually numbered in the same format as the artist’s proof, (example 1/20 PP).