Fierce job competition: As a position in a public institution, the recruitment examination compiled by the library is usually fiercely competitive, especially for the positions in some big cities or well-known university libraries, because the registration threshold for library examination preparation is relatively low and there are many qualified people, which leads to fierce job competition.

The examination content is diversified: the library preparation includes two parts: written examination and interview. The written examination includes professional knowledge, basic knowledge of public affairs and English. Candidates need to prepare for exams in many aspects, which requires a wide range of knowledge. In addition, the interview also requires candidates to have high comprehensive quality and adaptability, which also increases the difficulty of the exam, so it is difficult to prepare for the exam in the library.