This was the second large-format Discworld book, illustrated by Paul Kidby. As Discworld stories go it's rather weak, mostly being contrived to get all the major characters into a fairly short story. Some of the artwork's nice, though the calendar that appeared around the same time had larger versions of most of the good pictures. I can't really recommend this unless you're a Discworld completist; I certainly wouldn't buy the paperback version.
ISBN 0575073705. Buy this book at Amazon.