Professor Ryan has been invited to lecture on Shakespeare, literary theory and modern British fiction by universities throughout Europe (Germany, Holland, Hungary, Ireland, Italy, Greece, Belgium, Luxembourg, Spain, Switzerland), in Egypt, Mexico and the United States. In 2012 he delivered the inaugural annual Public Shakespeare Lecture sponsored by the Abbey Theatre and University College Dublin; in 2013 he delivered the F.W. Bateson Memorial Lecture at Corpus Christi College, Oxford and the annual Public Shakespeare Lecture at the University of Hull; and in 2016 he gave the Special Anniversary Public Shakespeare Lecture at the University of Durham. Professor Ryan’s broadcasting experience includes contributions to BBC Radio 4 arts programmes, the Open University/BBC series, Shakespeare: Text and Performance, for which he was the editorial consultant, and the commentary for the BBC's live broadcast of Measure for Measure from the Globe. He has written numerous programme articles for Globe Theatre productions. He has also written for The Guardian and been a regular book reviewer for the Independent on Sunday and the Times Higher Education Supplement. He is a member of the International Shakespeare Association and a member of the editorial board of Shakespeare: Journal of the British Shakespeare Association.