Normally email to John.Lavagnino@kcl.ac.uk is the best way to reach me, and you should expect a response within 24 hours. Don't expect 5-minute turnaround: I don't watch mail constantly. If you flag a mail message in the subject line with EMERGENCY I will respond sooner if I can. Perfectly reasonable messages sometimes get marked as spam by our mail system, so please send a further inquiry if you haven't received an answer after a day.
My office is at King's College London, Strand campus, but not in the main building in the Strand: instead I'm at 26–29 Drury Lane, second floor, room 214 (look here for a map). You're welcome to stop by the office any time you like in hope of catching me here—but it's generally best to make an appointment so you don't waste your time, as I'm frequently out of the office teaching classes, attending meetings, doing research in the British Library, or the like. Better to email me and propose some times that would be convenient for you. In autumn 2008 I also have a regular office hour, from 2 to 3 PM on Tuesdays when classes are in session; that begins on 23 September.
In the first half of 2009 I will be visiting the National University of Ireland, Galway and will only be in London on rare occasions.
You're also welcome to phone my office, at 020 7848 2453 (outside the United Kingdom, it's +44 20 7848 2453). I don't always answer the phone even when I'm in the office, because flesh-and-blood visitors get priority. I don't check answering-machine messages when out of the office.
The postal address is:
Dr John LavagninoFor personal visits or courier shipments, it's:
Dr John Lavagnino