Book suppliers mainly look at several aspects: 1. The scale of suppliers, including funds (it costs a lot of money to get goods to the library for distribution), the size of warehouses (spot or futures), and the size and arrangement of sample libraries (first, about/kloc-0.5 million new books are published every year in China, and if these books are stored in sample libraries, at least 300 double-sided 6-storey bookshelves are needed, and the requirements of libraries for shelving methods may be diverse. Some want to focus on publishing houses, and some want to focus on categories, which requires 600), the types of sample new books, and the proportion of new books (compared with books published in the same period). 2. The relationship between suppliers and publishers is very important. If you have a good relationship, you can sell it on credit for a period of time, and the publishing house can mainly distribute it, so that you can get more varieties. 3. The ability to provide bibliographies can not only provide bibliographic data in the sample stacks, but also provide them. Including the bibliographic data to be published, the completeness of the data content, and various information including ISBN (publisher, price), title, author, reader, classification, abstract, series, format, number of pages, uniform ISBN, standard number, etc. 4. Distribution capacity, that is, the arrival rate, can be calculated according to a certain period, such as one month or three months after receiving the order. In addition, the distribution error rate is low, so it is impossible to distribute all the books ordered by the library. 5. Processing capacity, many libraries hand over some processing work to booksellers and put forward processing requirements according to the habits of libraries. Whether booksellers can do well is also a manifestation of their ability. 6. Data quality, including bibliographic data and cataloguing data, is not only the whole project, but also the analysis, classification and subject indexing of books. 7. Orderly packaging and listing can meet the individual needs of libraries, for example, some libraries do not have elevators. Dabao is very tired. 8. The accounts are clear and can be reconciled at any time, and the understanding is correct. 9. The salesman's ability to understand the library business and try his best to connect the booksellers with the library. 10. The business process of the library distributor will affect the service. 1 1. The adaptability of library distributors, especially for library business, is 12.