Promotional flyers have a certain timeliness. In general, printing promotional flyers requires promoting the product in a short period of time and making many people understand the printed material in a short period of time. Currently, there are an unusually large number of people in the market posting promotional flyers, and the forms of printed materials vary. I want everyone to understand the content on the promotional brochure. Under normal circumstances, the printing and production of promotional brochures have the following characteristics: 1. The color of the printed promotional brochure is very strong, and under normal circumstances, the promotional brochure is usually set to bright colors. 2. There is relatively little textual content, and in addition, the content is a comprehensive summary. 3. The materials of printing media have significant differences, and printing media are not limited to paper. 4. There are differences in the appearance of printing media. For example, during the peak sales period of Apple phones, it is possible to create promotional flyers in the form of folded pages resembling the appearance of Apple phones, with the homepage page set to be the same as the back of the phone.