Posting to Autocat
A related concern is reissuing of earlier works. One thing that has made me angry is how many “publishers” are adding perhaps a new title page and “reissuing” an item in the public domain. This is seen clearly in Google Books when you limit to “Free Google eBooks” and select publication date 21st century. Particularly bad is the publisher General Books LLC, which when you limit in this way, you get 18th and 19th century materials with dates of 2009 or so on them. See, e.g. http://bit.ly/12CEfEX. This practice has made the limits of free books and 21st century almost useless.
It also illustrates a problem of relying on “publishers” for this kind of information.