Zami by Audre Lorde
Go Tell It On the Mountain by James Baldwin
Tommy's Tale by Alan Cumming
The Other Side of Paradise: A Memoir by Staceyann Chin
I already own the first three and probably have a few more that would qualify. Suggestions are welcome. Of course, all should know by now that I prefer authors of color. And, yes, I know Alan Cumming is not a POC. That selection is another story.
As you can see, I made a button too. If you're joining and want to use it, feel free to save it to your server and link to the challenge site.