[asicsp]

>you would hope the publisher assigned some people to check the work

Depends upon the publisher too, whether they are interested in publishing quality books or have a quantity policy.

>We all make errors, even those of us who do know what we're talking about

I was hesitant to write a book for a long time because I thought I wasn't good enough. I still think I have a long way to go, but I've grown better as a writer with experience. Feedback from users have caught many issues and helped me improve the content.