I've never yet given a book higher than an 8/10. I'm not mean. I'm not particularly choosy. I just like to keep the possibility open that I might read something I like even better.
But I don't want other readers to be put off by a book getting a 7. Because a 7 is really good. So here's a chart:
10--Perfection. Will be tempted to buy up every copy of this book I ever see. In case of disaster. Like . . . robbery by well-read theif (or my mother). Everyone should read it because it left me amazed and astonished by how wonderful it was.
9--Loved it!! All of it. Made me want to dance around and sing at the top of my lungs. Made me want to crawl inside the book and never leave.
7-8--Highly recommended. Lovely book, didn't want it to end. Will read much more by this author.
6--Recommended, especially if you like this kind of book or are a fan of the author.
5--Meh. I had little or no reaction to this book.
3-4--Serious flaws in my opinion. Not recommended.
1-2--I don't think I'll ever actually give a book this rating because I don't think I'd ever finish a book I hated this much. And I'd never review a book I didn't finish.
So there you go. An easy chart for your reading enjoyment.