Currency Info:

The UK's currency is the pound sterling (£ / GBP).
There are 100 pence (p) to the pound (£). Notes come in denominations of £5, £10, £20 and £50. Coins come in 1p, 2p, 5p, 10p, 20p, 50p, £1 and £2.
Exchange rates:

Power plugs and sockets:
In the United Kingdom the power sockets used are of type G (230V/ 50Hz).

Check if you need a VISA:

Local Transportation
UNO runs local buses throughout Hertfordshire and into North London, and fast, direct links to and from the University of Hertfordshire:
Coach and Bus Travel - National Express:
Hatfield train station: