Best placed in the North
North suits a study: it is Mercury’s direction in the mandala’s reading, and the tradition seats the reader facing north for retention and for work that needs記憶 and detail.
What the North governs
North is Kubera’s direction, the one the tradition associates with wealth and with opportunity arriving. It is kept light and unobstructed: openings, windows and low, empty corners rather than heavy storage.
Where the Study belongs
A study is placed for concentration and for morning light, which puts it in the same corner family as the pooja room. Seating direction matters as much as the room here: the tradition seats the reader facing east or north.