Photocopy and genuine books are printed after authorization, and there is little difference, but there are some differences in production. Their difference is that:

1, different production forms: genuine books are arranged and printed after authorization; The copy is a complete copy of the original, and the copyright remains the copyright of the original book.

2. Publishing houses are different: after authorization, genuine books can mark their own companies as publishing houses on the book cover; Photocopying can only indicate the book publishing house authorized by audio and video.

3. Book price: Because of the cost of copyright authorization, the price of genuine books is higher than that of photocopies.

Photocopying refers to publishing ancient books by means of original photographic plate making and photocopying, which is a form of sorting out and publishing ancient books. Photocopyed books don't need proofreading and punctuation, but they need to be selected and identified, checked for pages and looseness, and matched and described. Photocopying ancient books in China generally includes three categories:

One kind is voluminous information books and reference books, which are mainly used for reference or academic research. The second category is rare books and orphan books in ancient books. Photocopying this kind of ancient books is mainly to preserve the version, so that some rare books of ancient books in Song and Yuan Dynasties and rare books published in Ming and Qing Dynasties can be circulated. The third category is some commonly used books and essential books that meet the needs of readers and researchers.