Breach of contract?

I’ve explained a few times here in articles in this blog how I’ve chosen prices for my books, both ebooks and print versions (also see the little course “Writing Fiction,” the free PDF download). Some prices of print versions are out of my control for books published by my two small-press publishers, Penmore Press (Rembrandt’s Angel and Son of Thunder) and Black Opal Books (The Last Humans). Now pricing is out of my control for my other print versions—not that there are many (most of my books ar...