After I had already bought and read Mark Forsyth's "The Horologicon", I couldn't wait to also order "The Elements of Eloquence" and "The Etymologicon". A third one, "The Unknown Unknown", was totally unknown to me but I pushed the BUY IT NOW button anyway.
Perhaps I should have paid more attention to its byline "Bookshops and the delight of not getting what you wanted" because that's exactly what I got: a short essay of 23 pages the size of cash register dockets masquerading as a full-sized book and selling for $8.78 plus shipping. The delights of not getting what you wanted!
Read the preview here. At three pages, is a good 13% of the "book".