According to the "about this site" section of the blog:
Awfullibrarybooks.wordpress.com is a collection of the worst library holdings. The items featured here are so old, obsolete, awful or just plain stupid that we are horrified that people might be actually checking these items out and depending on the information.
This blog contains actual library holdings. No specific libraries or librarians are named to protect the guilty. Check your shelves, it could be you.
Do check it out -- it's both amusing and appalling (my favorite are the pre-1969 books on space travel and the 1980s books on computers).