Abstract: A tree shaped display stand features elongated post pieces each having an externally threaded male feature at a first end, an internally threaded female feature at an opposing second end, and first and second annular faces respectively surrounding the male and female features. Shelves of different diameter each have a central hole therein through which the externally threaded male feature at the first end of one of the post pieces is engagable with the internally threaded female feature at the second end of a next one of the post pieces to clamp the shelf unit between the first and second annular faces of the post pieces. Hook members each have a clip portion arranged to clip onto any of the shelves over a circumferential edge thereof. The same pieces forming the tree-shaped display stand may be assembled in another manner to form a table.