How many errors per page volume is typically "okay" in a book?

Question

Suppose I'm in charge of getting a three hundred page book published. I'll do all reasonable things to get it proofread, but still there is a chance that some errors will persist.Now the book goes to the bookstores and readers start reporting errors. I'd like to know whether the rate of errors is "acceptable" or if I haven't really done my job.Is there any standard, or any informal rule, for how many errors are "acceptable"?

Answer 1

I'd say you want ZERO errors in your book. Even one error can take the reader out of the experience. Some errors are certainly worse than others, but a writer/editor should strive for zero. The question then becomes, how many errors are acceptable to you??