Usherwood Publishing. I show it here with the large-format hardcover and softcover versions of the same content.
It's a Lulu print-on-demand book, and costs $US 13.50 (plus postage to NZ of about $7). With the exchange rate as it is at the moment, it ended up costing me about $NZ 26-ish all-up, which is not too bad at all.
It's terrific, and I can see it being my default version in use. I'm a great fan of smaller book sizes than the traditional US Letter format; they take up less room on the table, they're easier to shelve, and they're much lighter and more convenient to carry around.