My university library had these. Big enough for 2 or 3 people to co-operate, small enough to use solo in quiet times without being a egregious space hog, and tr

My university library had these. Big enough for 2 or 3 people to co-operate, small enough to use solo in quiet times without being a egregious space hog, and translucent acoustic panels that went from about 6 inches from the floor to about 2.5 metres (easy to see occupancy without being a fish-bowl).