Just "simple" questions...
But first my workflow for "real" books:
I go to a store and read the abstract at the back of the books. If it's good I buy it and read it at home - if not I continue searching.
Now to my questions:
If I want to use this workflow I have to get the comment stored in calibre into the epub. At the reader the comment has to be reachable for each book - easily.
What is the easiest way?