In addition to a written review, I rate each book using bookmarks (in lieu of stars). As with all book reviews, mine are subjective and reflect personal taste and preference.
5 Bookmarks= In a word, sublime.
4 Bookmarks= Let dinner burn; read this now.
3 Bookmarks= Add this to your TBR pile.
2 Bookmarks= Check it out from the library.
1 Bookmark = Not my cup of cocoa.