The UK has visa-free (or visa-on-arrival) arrangements with many countries. More information on visas and to check whether or not you need to apply can be found on the United Kingdom Visa and Immigration (UKVI) website.
If you require a visa, please send the following information to info@iccdu2016.org.uk
Title
Full name (as shown on passport)
Job position/role
Organisation full address
Date of Birth (dd/mm/yyyy)
Passport number
Abstract title and number.