I bring you this set of photos that were produced for Camel. And it has much to do with OPTICAL ILLUSIONS! Observer some of the most fascinating Camel posters. There are dozen of them, some more obvious, and some more difficult to see. Which billboard makes the Camel logo hardest to spot? Which one is best in its design? Which one you liked the most? Try and answer few of these questions, and please share you opinion on articles like this one. Enjoy!