according the manuel books who are not opened should have a special symbol.
"Unread*Title:*An*item*that*has*never*been*opened* has*a*default*icon".*
a great option. however, it seems that only a couple of books have this symbol. why not all books who are not opened?

it would be great if i could move a book after reading to another folder. could that be an option for a new software release?