The Essential Style Guides is a short series of 3 books dedicated to aspects of style and decorating. They are relatively modern (late 90's) but style and decorating aren't really my forte, so I can't say whether or not they are any good.
You see entire sets of these for sale on e-Bay, pretty often. Individual volumes also show up frequently on e-Bay. You can buy these volumes on Barnes & Noble or Alibris used, too, so that might be the best bet overall.