From Leeds railway station, the campus is within walking distance, at about 15-20 minutes.
Arriving in Leeds from outside the UK
If you intend to take a plane to London and a train to Leeds, beware that last minute train tickets are quite expensive. You can check train times and ticket prices at http://www.nationalrail.co.uk/
If you need an invitation letter for your visa please email this request to the organisers.
There are several hotels within walking distance from the University campus. These are some options:
The area of Headingley along Otley Road is very well connected to the university with frequent bus services and may offer cheaper accomodation. booking.com may help you finding a hotel.