With his colleague Michael Thrasher, Rallings has written extensively on electoral systems, results and British politics. He is Co-Director of the Local Government Chronicle Elections Centre. Rallings has also appeared on ITN's ITV News election coverage on numerous occasions since the start of the 21st century.
C. Rallings & M. Thrasher, The 2006 Local Elections Handbook, (Plymouth: LGC Elections Centre, 2006) ISBN0-948858-41-9.
C. Rallings & M. Thrasher, The 2005 Local Elections Handbook, (Plymouth: LGC Elections Centre, 2005)
C. Rallings & M. Thrasher, The 2004 Local Elections Handbook, (Plymouth: LGC Elections Centre, 2004)
C. Rallings, D. Denver & M. Thrasher, The Media Guide to the New Scottish Westminster Parliamentary Constituencies, (Plymouth: LGC Elections Centre, 2004)
C. Rallings, M. Thrasher (& others), Public Opinion and the 2004 elections, (London: The Electoral Commission, 2003)
C. Rallings, M. Thrasher, & G. Borisyuk, The cycle of local government elections in England, (London: The Electoral Commission, 2003)
C. Rallings & M. Thrasher, Local Elections in Britain: A Statistical Digest, (Plymouth: LGC Elections Centre, 2003)
C. Rallings, M. Thrasher, et al. One Vote, One Value. (Aldershot: Ashgate, 2002)
Electoral Commission, Compiled by Colin Rallings & Michael Thrasher, Election 2001 - The Official Results, (London: Politicos, 2001)
Rallings, C. and M. Thrasher. Patterns of Voting in Parliamentary Constituencies 1990-2000. (Plymouth: LGC Elections Centre, University of Plymouth, 2001)
C. Rallings & M. Thrasher, Elections – the 21st century model: An evaluation of May 2000 local electoral pilots (London: Local Government Association, 2000)
C. Rallings & M. Thrasher, British Electoral Facts: 1832-1999, (Aldershot: Ashgate, 2000)
C. Rallings, M. Thrasher & G. Stoker, Proportional Representation in Local Government: Lessons from Europe, (Joseph Rowntree Foundation: York Publishing Services, 2000)
C. Rallings & M. Thrasher, New Britain: New Elections, (London: Vacher Dod, 1999)
C. Rallings & M. Thrasher, British Parliamentary Election Results 1983-1997, (Aldershot: Ashgate, 1999)
C. Rallings & M. Thrasher, Britain Votes 6, (Aldershot: Ashgate 1998)
C. Rallings & M. Thrasher, Local Elections in Britain, (London: Routledge, 1997)
C. Rallings, M. Thrasher & J. Downe, Enhancing Local Electoral Turnout : A guide to current practice and future reform (York Publishing Service, 1996)
C. Rallings & M. Thrasher, Local Voting and the New Parliamentary Constituencies, (Plymouth: LGC Elections Centre, 1996)
C. Rallings & M. Thrasher, The Media Guide to the New Parliamentary Constituencies, (Plymouth: LGC Elections Centre, 1995)