Now that the 2014, 5-volume collection featuring selections from Zumthor’s oeuvre has been published, is this book still worth referencing?
Although the date range of the first two volumes roughly coincides with the date range of this book, they aren't a reprint. As I mentioned in my review of the new collection, the two publications are similar in spirit, but there are some differences. The length of the sections devoted to each entry is generally shorter in the new books, meaning that a large number of photos aren't included in the 2014 collection. This is doubly true because the layout of the new collection is slightly more open when buildings are covered and much more open when projects are covered. After carefully comparing the two publications, I've come to the conclusion that probably 50% of the material in this book isn't included in the new collection.
Projects that aren't in the 2014 books include the Community Center, Landquart, Graubünden, 1987; Holiday Hotel, Swiss Association of the Blind, Willerzell, Schwyz, 1989; Burghalde Apartment Building, Baden, Aargau, 1989; Lindua Casino, Lake Constance, Germany, 1995; and Villa in Küsnacht on Lake Zurich, 1997. The designs of the Kolumba and the Swiss Sound Box later changed; this book presents an earlier version of both designs.
Because the Swiss architect has such a loyal following among architects around the world, and because Zumthor refuses to allow his books go into extra printings, this jewel of a book documenting a half dozen of Zumthor's project is much coveted by collectors. The photographs are sumptuously lit, and beautifully printed.