A long time ago, I dropped by a session of a creative writing course where the teacher brought a lot of reference books. One of them was a lovely picture/sketch-based identification dictionary. There were vivid drawings of a Regency ballroom, and each of the items in the room had a tag that showed their name. There were also lots of other things -- wardrobe and coats with all their parts named, obscure house parts, etc. No idea what it's called.
I've been trying to find a good subject-based visual dictionary like that. I often don't know how to describe a particular furniture or clothing item exactly, and it would be lovely to just be able to look up a picture, then read the tag that points to the name of the item in the picture!