1. Regular channel procurement: When purchasing books, Ma Juan Group will choose to cooperate with regular publishers, distributors or official channels to ensure that the purchased books are genuine and authentic, which can guarantee the quality and authenticity of books from the source.

2. Strict quality control: After receiving the books, Ma Juan Group will conduct strict quality inspection, including the printing quality, binding quality and content integrity of the books, to ensure that every book sold meets the quality standards.