Bookshelf I pasted wallpaper to foam core (rather than wallpapering the cabinet) for the back of the bookcase. The beautiful print plus the Bon Appetit one is from Minted. I know I have mentioned them on the blog over the years as I am a huge fan.
Closet office idea. If you could get the chair to tuck in to the closet, and then the close able to close at the end of the day, this would be very cool. What a great way to mentally break from work at the end of the day.