The Letter Review Prize is a regular writing competition split into the following categories: Short Fiction, Poetry, Nonfiction, Art and Books. It offers cash prizes and publication to the winners. You can access previous winners on the Letter Review site to give you an idea of what floats their boat.
The Book Prize is open to anyone in the world but the entry must not have been traditionally published. The competition is open to all varieties of novels, short story collections, nonfiction, and poetry collections. Manuscripts which are unpublished, self-published, and some which are indie published will be accepted. Be sure to refer to the full entry guidelines for further details. Entrants should submit the first 5,000 words of their manuscript, whether it be prose or poetry.