Library Partnership Rating
The Library Partnership Rating is a collaborative and library-developed framework for librarians who seek to quantify the alignment of publishers with themselves as they consider investing library resources. It was first developed by Rachel Caldwell at the University of Massachusetts Amherst and Robin Sinn at Iowa State University, although it now has a large advisory council made up of several libraries and publishers.
The current iteration of the rubric, which has been adopted and adapted by many libraries as they consider OA investment offers (among other resource requests from publishers), covers journals specifically. However, a working group is currently aiming to expand its coverage to books. As it is primarily a US-focussed resource, librarians in other regions wishing to adopt a similar rubric may need to localise some parts of it.