The son of Arthur Till, a Royal Air Force officer, and Violet Till, Geoffrey Till studied at King's College London, where he received his B.A. in 1966. Then, he went on to complete his MA in 1968 and PhD in 1976 at the Department of War Studies, King's College London.
Air Power and the Royal Navy, 1914-1945: a historical survey. London : Macdonald and Jane's, 1979.
Maritime Strategy and the Nuclear Age by Geoffrey Till, with contributions from John Hattendorf... . London : Macmillan, 1982,1984; New York: St. Martins Press, 1984.
The Sea in Soviet Strategy by Bryan Ranft and Geoffrey Till. London: Macmillan, 1983; 1989.
The Future of British Sea Power, edited by Geoffrey Till. London: Macmillan, 1984.
The Strategy of Seapower by Stephen Roskill with Geoffrey Till editor and author of the revision. London: John Goodchild, 1986.
Modern Sea Power: An Introduction London: Brassey's Defence, 1987.
Britain and NATO's Northern Flank, edited by Geoffrey Till. Basingstoke: Macmillan, 1988.
East-West Relations in the 1990s: The Naval Dimension, edited by John Pay and Geoffrey Till. London: Pinter, 1990.
British Naval Documents 1204-1960 eds. J. B. Hattendorf, R.J.B. Knight, A. W. H. Pearsall, N. A. M. Rodger, G. Till, Capt. A. B. Sainsbury, Navy Records Society.
Challenges of High Command in the Twentieth Century, edited by Gary Sheffield and Geoffrey Till. Camberley: Strategic and Combat Studies Institute, 2000; Basingstoke: Palgrave Macmillan, 2003.
Seapower at the Millennium, edited by Geoffrey Till. Stroud: Sutton, 2001.
Seapower: A Guide for the Twenty-First Century. London: Frank Cass, 2004; Routledge, 2009, 2013, 2018.
The Development of British Naval Thinking: Essays in Memory of Bryan Ranft, edited by Geoffrey Till. London: Routledge, 2006.
Naval transformation, ground forces, and the expeditionary impulse : the sea-basing debate Carlisle, PA : Strategic Studies Institute, U.S. Army War College, ; : Strategic Studies Institute, .
Globalisation and Defence in the Asia-Pacific, edited by Geoffrey Till, Emrys Chew, and Joshua Ho. London: Routledge, 2007.
The Rise of Naval Power in Asia-Pacific, edited by Geoffrey Till. London: Routledge: Adelphi series, 2012.
'Sea power and the Asia-Pacific : the triumph of Neptune? edited by Geoffrey Till and Patrick C. Bratton. London: Routledge, 2012.
The real "long war" : the illicit drug trade and the role of the military Carlisle, Pennsylvania: Strategic Studies Institute and U.S. Army War College Press, 2013.
A new type of great power relationship between the United States and China: the military dimensionCarlisle Barracks, PA : Strategic Studies Institute and U.S. Army War College Press, 2014.
Understanding victory : naval operations from Trafalgar to the Falklands Santa Barbara, CA: Praeger, .
Naval modernisation in South-East Asia : nature, causes and consequences edited by Geoffrey Till and Jane Chan. Abingdon, Oxon : Routledge, .
The changing maritime scene in Asia : rising tensions and future strategic stability, edited by Geoffrey Till. Basingstoke: Palgrave Macmillan, 2015.
International order at sea : how it is challenged, how it is maintained Jo Inge Bekkevold, Geoffrey Till, editors. London: Palgrave Macmillan, 2016.
Asia's naval expansion : an arms race in the making?'' London: Routledge, 2017.