TRAC 2005 was held at the Institute of Archaeology and Antiquity, University of Birmingham, under the auspices of The Roman Society. Of the twenty-three papers delivered here, this volume presents eight, plus three special contributions. These three papers were commissioned to mark the fifteenth year of TRAC with the intention that they should take stock of TRAC to date and look to where it may go in the future. A very clear message is conveyed: that TRAC must continue to evolve and that a continued existence in its current form, though possible, will ultimately fail to realise further success. In seeking to engage with new ideas and theories, the endeavour symbolised by the first conference, to bring theory from the margins of Roman archaeology, continues today.