By far the best place to buy prints.
Richard Dorment
The DailyTelegraph, Review

Royal Academy of Arts
Burlington House
Piccadilly
London W1J 0BD

Open daily 10am - 6pm
Friday late evening opening until 8pm

London Original Print Fair tickets are available on the door priced
£8.00 including catalogue (£4 concessions)
Free to Friends of the RA plus a guest