The XXIII International Symposium on Lattice Field Theory Lattice 2005 http://www.maths.tcd.ie/lat05/ The conference will take place from July 25th to 30th in Trinity College, Dublin. Registration will begin on Sunday afternoon, July 24th and the conference program will begin on Monday morning, July 25th, concluding on Saturday, July 30th, at lunchtime. REGISTRATION AND SUPPORT The registration fee for the conference is EU330. Limited support is available for participants from developing countries and for students and beginning postdocs who are unable to obtain sufficient support elsewhere. To obtain this assistance, please apply to the conference secretariat (lat05@maths.tcd.ie) ACCOMMODATION Accommodation is provided in a variety of college rooms and nearby hotels, all within walking distance of Trinity and the city centre. Details on conference hotels are available on the conference web-page. On-line accommodation booking is available during the registration procedure. SUBMIT AN ABSTRACT The online abstract submission system is available for you to send your proposed abstract. Please choose your preferred parallel session and whether you would rather present a poster or a talk. Abstracts should be formatted using LaTeX mark-ups, but do not include \begin{document} or \begin{abstract} statements. As happened at the Lattice 2004 conference, three parallel abstracts will be "promoted" to the plenary session. IMPORTANT DEADLINES Early registration and abstract submission: May 20th, 2005. After this date, a higher registration fee may apply. FURTHER DETAILS AND CONTACTS For further information about the conference and Dublin please see our web page http://www.maths.tcd.ie/lat05 You may contact us by emailing lat05@maths.tcd.ie or by sending ordinary mail to Lattice 2005 Secretariat, School of Mathematics, Trinity College, Dublin 2 Ireland We look forward to welcoming you to Dublin! Chris Allton, Nicola Boutall, Simon Hands, Alan Irving, Ralph Kenna, Craig McNeile, Chris Michael, Mike Peardon, Sinead Ryan, Jim Sexton Local Organising Committee