I am crushed to discover my book, Elephant's Breath & London Smoke, on Google Books. Now when I first discovered the entry I was amused and pleased. So I clicked on the link.
This wasn't a snippet entry. Not even a real limited entry. At least 20% of my dictionary is available.
Perhaps 20% of a novel could be considered "Not too bad" - though personally I disagree. Perhaps 20% of a novel would make a reader want to buy the book.
But 20% of a non-fiction work is more than I generally read at any given time. I dip in, get what I want and leave. No need to buy it.
Mind you, I do not use books still in print in this fashion. I will use books out of copyright that way. I consider it fair use. If I plan to read a large portion of a book, I buy it.
20% is a large portion of a book. That is far beyond fair use.
My book is only a few months old. It is still in print. I feel that Google Books is giving away a year of hard work for free.
I am crushed to see my work on Google Books.