Can't find a Kanye West poster?

I'm going to college and i decided i want to decorate my room with posters of my favorite things so i really wanted to get some Kanye posters. Not just posters of himself, posters of his album covers like college dropout, late registration and graduation. I have looked for these posters but i couldnt find any. Does anyone know if they make posters like this that are big enough for a dorm room. Im looking for like a 22x27 size but could go smaller if need be.