This is precisely why they invented the internet

The British Cheese Board's website is chock full of fascinating and detailed information and resources relating to British Cheese. ("Coloured cheeses like Red Leicester, Double Gloucester and coloured Cheddar and Cheshire get their red colouring from Annatto, a flavourless vegetable extract from the seed of a South American tree.")

Of particular (okay, peculiar) interest is the Download selection, including "Education Packs" and high resolution images of British cheese, like stilton (pictured - click on it for some big cheese).