Good Interface  Minimal Features What it does  it does well. One thing I don't like is the file management. I have my library organized by author  series  and then the books. I can't select a root folder to add (my master Audio Book folder)  otherwise it thinks the sub-folders are their own book. My suggestion: having it maybe show the sub-folders  and then clicking the folders shows the next folders  kind of like a music management  where you click on artist  then album and such.
April 10 2016