There were several possible reasons why pirated books had so many typos: 1. There may be irregular situations in the production process of pirated books, such as poor printing quality, lax proofreading, etc. These irregular situations could lead to problems such as typos or missing prints in the manuscript. The creator of the pirated book may not have done sufficient proofreading and printed it directly. In this case, the pirated book might have printing errors or missing prints, resulting in typos. 3. The creator of the pirated book may not have read the manuscript thoroughly and only printed it according to the existing template or outline. In this case, there might be some misspellings or grammar errors in the pirated book because the author might have made some negligence or mistakes in writing. The reason why there were so many typos in pirated books was mainly because the creators of pirated books did not follow the rules, were not serious, and lacked sufficient proofreading and reading.