What happens when you make a book open access? New business models are emerging, but challenges still remain.

Initial studies into the effect of open access monographs suggest little to no impact on sales, but an increase in discoverability and online usage. But there are still many hurdles to overcome before OA books become a routine option for scholars. Ellen Collins and Caren Milloy present an overview of how the OAPEN-UK research project is exploring disciplinary norms and emerging models in monograph publishing.