It was an informative book - well written, well researched, well structured. I guess it's just not really for me. I do like the detective genre, but I haven't read most of the books mentioned, and I don't have a good memory; so I could neither just enjoy a recap of my favorites, or gather tips based on (often very enticing) descriptions, because I don't remember which book was which 10 minutes after I closed the book.
I did still jot down a few tips which I might read eventually, but that doesn't feel like much.