As a successful photographer known by his delicate yet in-depth approach, Chang Chien-Chi realizes his promise on humanistic care with the camera in his hand, and provides beautiful interpretation for the contemporary photography and its related ethic of beliefs. The Double Happiness, as a series of work, it records the cross-national marriages between Vietnam and Taiwan. The images are not just narrative, but inferring phenomenal demographic interflows between different levels of hierarchy within a global, capitalized social system where almost everything can be merchandized.His works encouragecritical thinking from the viewers with its incisive and cold-headed images.