I came across the author, Peter Bevelin, from an article on the Farnam Street Blog. I went searching for his books on Amazon, and while they have hardcopy versions of the books referred to in the article, the only e-book available was this one. I purchased it as it was reasonably priced.
It’s a mildly interesting set of quotes from, about or related to Sherlock Holmes. While I’m not a Sherlock Holmes obsessive, I am a fan. I found the book pleasant enough to skim through, but not overly enlightening. Not a book to go out of your way for.