汪端

Wang Duan is the author of Chinese books on digital photography post-processing. Public information about him is limited, and no systematic account of his life has been disclosed. Judging from the seven works held in the collection, his writing focuses on Photoshop techniques for digital photo processing, covering topics such as masks, channels, RAW, portraiture, color, layers, and landscape. All of these appear under the "Old Postman" series title. Aimed at ordinary photography enthusiasts and beginners, the series takes concrete operations as its main thread, breaking relatively abstract software functions into steps that readers can follow. The language is plain and the emphasis practical. The works are classified under software learning, indicating that they are positioned as tool books and tutorials rather than theoretical monographs. Several of the seven titles have been issued in revised or new editions, suggesting sustained demand for the series among readers.