Giving a book a star rating is tricky business. All commenters on sites like Amazon or Goodreads do it, but not many book bloggers. It is like looking at a resort on Tripadvisor, you are always going to find some who champion the place and others who would never recommend it. A book may get a high rating from me but you might be lukewarm about it. Of course reading tastes differ. Even if I read the same book in another time in my life, I might rate it differently.
The reason I do give a rating is because it requires me to give some indication of the quality of the writing and the quality of the reading experience. Though mostly gut reaction, I do look at things like writing style, readability, overarching themes, what I learned, level of suspense, conflict, redemption, point of view, emotional impact, character development, etc. It remains an interesting exercise because no book has everything for everyone, but it does help me to identify the really good ones and forces me to form an overall opinion.
Most importantly, it allows you to click on the Five Star and Four Star lists from the “Genre Categories” menu in the right sidebar of this blog, for quick lists of the very Best Books I’ve read. I hope this is helpful to you!