The propositional requirements of library reference posts include: knowledge and skills, problem-solving ability and communication and cooperation ability.

1, knowledge and skills requirements: the proposition usually examines the applicant's basic knowledge and understanding of library disciplines, as well as related information retrieval skills, consulting skills and communication skills.

2. Problem-solving ability: The proposition may give specific cases asked by readers, requiring candidates to use library resources and skills to solve problems.

3. Communication and cooperation ability: the proposition can simulate the communication scene between the applicant and the reader and examine their communication and cooperation ability.