I read cozy and historical mysteries, a bit of Paranormal/UF, and to mix it up, I read science and gardening books on occasion.
An excellent little book for what it is: a collection of facts about books and authors. Oldest books in existence, description of the ISBN system, book towns, oddest titles of the year, and a code key to Penguin paperbacks are all examples of the interesting and sometimes amusing facts collected together in this small tome.
I'm afraid MT learned rather more obscure facts about book than he'd have said he was interested interested in, as I couldn't resist reading many of the sections out load. My only disappointment was the distinctly UK focus; a small disappointment all things considered.
"Of all the things man can do or make here below,
by far the most momentous, wonderful, and
worthy are the things we call books."
– Thomas Carlyle