Post History
I think you mean "errors" rather than "errata". A book's errata is usually a list of errors that have been noted and are corrected on a separate page. You don't see errata so much these days—it's c...
Answer
#3: Attribution notice added
Source: https://writers.stackexchange.com/a/20753 License name: CC BY-SA 3.0 License URL: https://creativecommons.org/licenses/by-sa/3.0/
#2: Initial revision
I think you mean "errors" rather than "errata". A book's errata is usually a list of errors that have been noted and are corrected on a separate page. You don't see errata so much these days—it's cheaper to correct the error and reprint it, and there's less of a financial inducement to print the errors on a separate sheet. 5 errors in 50 pages might be acceptable, depending on the nature of the errors. If it's a book on programming, and the errors mean that most of the programs don't work as printed, this is unacceptable. But if it's a missing comma here or there, then it sounds normal, and possibly better than average. Some people's "errors" are issues of style—for example, the so-called Oxford comma.