The present disclosure discloses a foldable table shelf mechanism. The foldable table shelf mechanism comprises a storage board, a pair of folding frames, and one or more position-limited members. The storage board is configured to be changed to be alternatively in a folded state or in an unfolded state. The one or more position-limited members support the pair of folding frames to enable the storage board to be maintained in an open position when the storage board is in the unfolded state. The storage board parallelly falls frontward and finally abuts a front portion of a top surface of the table during a folding process of the storage board. After being folded, the storage board is convenient for transportation and storage.

The present disclosure discloses a foldable table shelf mechanism. The foldable table shelf mechanism comprises a storage board, a pair of folding frames, and one or more position-limited members. The storage board is configured to be changed to be alternatively in a folded state or in an unfolded state. The one or more position-limited members support the pair of folding frames to enable the storage board to be maintained in an open position when the storage board is in the unfolded state. The storage board parallelly falls frontward and finally abuts a front portion of a top surface of the table during a folding process of the storage board. After being folded, the storage board is convenient for transportation and storage.

Example modular desks are described herein. An example desk includes a first desk surface and a second desk surface coupled to the first desk surface. The second desk surface is moveable relative to the first desk surface between a first position in which the first desk surface and the second desk surface lie in a first plane and a second position in which the second desk surface is disposed in a second plane which is non-parallel to the first plane. The example desk includes a touchscreen coupled to the second desk surface. The touchscreen is exposed when the second desk surface is in the first position and when the second desk surface is in the second position. The example desk includes a processor operatively coupled to the touchscreen. The processor is to control a presentation of data via the touchscreen.