APUS and its ePress work in collaboration with the Policy Studies Organization.
As indicated on the PSO website, "The PSO's publications are central to its dissemination of policy scholarship. Our academic journals, book series, and open access journals provide scholars, students, professionals, and all those interested in policy studies, a wide-ranging set of resources. In recent years the PSO has expanded its journal offering to provide further means to engage in the emerging policy conversations. A majority of the PSO journal titles are published through Wiley-Blackwell while two titles are currently provided as open access."
For more details on the PSO publications: