Bank of China / The invitation letter designed for the Bank of China integrated historical treasure, Olympic related, commemoration meaning, dignity and refinement, it is the intersection of Chinese Characteristics and international characteristics, the combination of the Bank of China and Olympic concept, the special embodiment of treasure value. The inspiration of design creativity comes from the bamboo slips scroll which represent the signal of thousands years of Chinese history., bamboo slip not only experienced different periods of China, corroborating the increasingly prosperous long term development of China, but also crosses one by one century of China with the wheel of history.