Press type, scope of work and organization type. In China, there are central publishing houses and local publishing houses according to their affiliation. According to the business scope, there are comprehensive publishing houses and professional publishing houses.
There are many kinds of books published by comprehensive publishing houses, while professional publishing houses are only responsible for editing and publishing books of certain majors and categories. According to the form of publications, there are book publishing houses and audio-visual publishing houses.
Historically and broadly speaking, the scope of work of publishing houses includes editing, printing and distribution. In China, only a few publishing houses have their own printing plants.
Although the publishing process is not the main formation process of knowledge information, it is a process of selecting knowledge information system, which is carried out according to the requirements suitable for readers' consumption. The knowledge information in the selected works should also be sorted, supplemented, refreshed and improved according to the same requirements.
That is, the original work is edited and processed through editing. Paper money is not a publication, printing paper money is not a publishing activity, or it is because the original work has not been edited and processed, thus lacking knowledge and information content for readers to consume.