Heads up! We’re working hard to be accurate – but these are unusual times, so please always check before heading out.
It's peak tourist season for London's art galleries, which means postcards are flying out of the racks. In our age of Twitter, Instagram and general can't-be-arsed-ness, actual postcard writing may be a dying art, but we still love to pick up miniature versions of the best paintings in London (for around 70p each) to adorn our walls - or just languish in drawers. Here are the top ten postcards based on sales over the past year at the National Gallery.