Oh, and another thing:
I uploaded my book to Amazon, and then bought the book so that I could see it on a Kindle app. I found one error and uploaded a correction to Amazon.
Since Amazon does not update users' versions automatically, I've had to send them three emails asking them to please update the version of my book on my account with the latest version. They're STILL trying to figure out how to do that.
And it takes up to 1 week for "look inside this book" to work AND that only covers a finite amount that (apparently) I can't change or increase.
So it's not even easy for the publisher to FIND these errors. Thanks, Amazon!