Nick Rossiter is a Visiting Fellow at Northumbria University, in the Department of Computing  Science and Digital Technologies. He was formerly a Reader, publishing 228 papers up to the end of 2012, many on the application of category theory to information systems. Nick has always been enthusiastic about natural history, with particular interests in birds (BTO Regional Representative for Northumberland 1983-1989, Northumberland County Recorder 1990-1998) and in butterflies and moths (significant contributor to the definitive updates for Northumberland and Durham in the 1990s, particularly microlepidoptera). His current personal interests extend to gulls, particularly the Yellow-legged Gull complex, and to raptors, especially Honey-buzzard.

Nick has lived in Hexhamshire, a very rural area south of Hexham, since 1985. He has traced his family back through Devon, Somerset and Devon again to a marriage in Tiverton in 1712. Current research is checking for earlier links from Wexford in Ireland. Passionate interests in the Hexham area include the study of Guinness and a sorority.

Opera of all sorts is the top musical interest, with Wagner a particular favourite and a visit to Latvia to see the entire Ring Cycle of Wagner in June 2013 was a magnificent event.

Nick is keen on travel, having visited Africa many times, including Kenya, Tanzania, Ethiopia, South Africa, Gambia, Egypt and Morocco. In Asia he has been to India, Israel and Turkey. Atlantic islands have been a popular destination for many years, particularly the Canary Islands (each one visited), Madeira, the Azores (5 islands visited) and Cape Verde (3 islands). In the USA he has been to California, Florida, Arizona, Washington, Maryland and Michigan, and in the Caribbean to Barbados. All countries in western Europe have been visited, many for conferences. In eastern Europe have visited Poland, Latvia, Finland, Czech Republic, Croatia, Montenegro and Greece. Just one cruise has been made: a Norwegian coastal voyage from Bergen via Tromsø and Bear Island to Svalbard and the ice pack at 80º32′ N.