Subway zen is a 15 years personal project on the subway world. Is mostly a point of view.
Self-publishing is the publication of media by its author without the involvement of an established publisher. In common parlance, the term usually refers to physical written media, such as books and magazines, or digital media, such as e-books and websites. It can also apply to albums, pamphlets, brochures, video content, zines, or uploading images to a website. (Wikipedia)
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