A t-shirt with a custom print is the most popular product on the print-on-demand market. Millions of people spend their money on being original through their clothes – in particular, by finding an unusual design for their t-shirts. They also like surprising their friends with t-shirt gifts which reflect their personality the best or are a good piece of humor. So, t-shirts are a rewarding and creative business, but their promotion might be a challenge because of the intense rivalry in the market niche. There are many examples of affordable promotion of a t-shirt brand from scratch. Cost-efficiency, the inclusion of social networks, A/B testing, and cross-selling are just several promotional methods you can use for your business development. The following material will let you know how to promote a t-shirt print-on-demand business in this competitive landscape.