Upon beginning my research, I was immediately struck by the lack of books or documentation available in the universities library on the subject, which is perhaps to be expected considering the relatively short time that AM has been considered in academic purposes. That being said, access to the majority of scientific and engineering journals through the academic licenses proved to be a useful resource.
Much of my research came from publicly available articles and publications, a very useful example was the UK advisory group AMUK. The organisation have released many publications, full of useful insights, quotes and further reading references.