Professor Connah has written widely on African archaeology, which is his main research field, concentrating on urban and state origins in the last 6000years, particularly in Nigeria and Uganda. His best-known book is African civilizations, published by Cambridge University Press and now in its second edition (2001). A third edition will be appear shortly from the same publisher. In 2004 he published a general book on the archaeology of Africa with Routledge, London, entitled Forgotten Africa, which has been translated into German (2006), French (2008), Italian (2009), and Portuguese (2013). He was also one of the pioneers of Australian historical archaeology, publishing The archaeology of Australia’s history with Cambridge University Press in 1988 and 1993; and in 2007 publishing The same under a different sky? A country estate in nineteenth-century New South Wales, with British Archaeological Reports, Oxford, UK. More generally, in 2010 he published Writing about archaeology with Cambridge University Press.
In addition, he has published other books and many papers concerning his African and Australian research work, most recently collaborating with David Pearson, of the Australian National Library, on papers concerning the developing research field of conflict archaeology. Two festschrifts have been published in his honour: Australasian Historical Archaeology 27 (2009) and Azania: Archaeological Research in Africa 47(3), (2012). He was awarded the Order of Australia in 2000 for his contributions to African and Australian archaeology.