» Fri May 25, 2012 2:17 pm
I didn't have to read any book to buy decoration for my house in Whiterun (or Markath). I just talked to the Stewart who sold me the house and told him I want to buy decorations which then gave me a list of different choices I could pick from.
I know this doesn't help the OP, just wanted to point out it's not necessary to read the "house decoration" book first. Maybe it has something to do with the amount of gold you are carrying? If you don't have enough, the option doesn't show? Some house parts you can buy can be bought for a few hundred gold. But no idea if that is actually the problem.
But, now that I think of it ... I read somewhere that you have to finish a couple of quests to buy at least some (if not all) the furniture for the Windhelm house. So maybe you need to do some more good things for Ulfric first.