The publishing houses of light novels and comics in Taiwan usually divided them into hardcover and regular versions, as well as other versions. Generally speaking, the difference between the hardcover edition and the regular edition was the cover design and the printing quality. The hardcover edition usually used high-quality paper and printing techniques to make the book cover more beautiful. At the same time, the content would also be enhanced to make it easier to read. The regular edition used plain paper and printing techniques that emphasized clarity and legibility. In addition, there were also some different versions such as the paperback version, the paperback version, the ultra-luxury version, etc. The differences between these versions were in the cover design, paper quality, printing technology, and there might be some minor differences in content. Of course, different publishing houses might also release some special themed versions, memorial versions, and so on. The characteristics and differences of these versions would also be different.