Faberlous book covers (sorry)
Publishers Faber and Faber have a fine Flickr stream full of their book covers, catalogues and author photos, old and new. Penguin covers deserve the attention they get but by comparison Faber's covers are hidden treasures. Their Faber 20th Century classics like Ariel (above) are so simple, but so striking. The modern day poetry series with typographic covers continues the text-only tradition (thanks Gareth).