I'm convinced it's impossible to take a bad picture of the Penguin Clothbound series--which is why they remain a favorite collection of mine. The featured mug is by Obvious State (everything they create is perfection) and it's available here.
Featured editions (from left to right):
The Canterbury Tales by Geoffrey Chaucer: 9780141393216
The Portrait of a Lady by Henry James: 9780141394664
Naked Lunch by William S. Burroughs: 9780241284636
Hard Times by Charles Dickens: 9780141198347
Treasure Island by Robert Louis Stevenson: 9780141192451
Persuasion by Jane Austen: 9780141197692