Abstract: A portable desk according to a preferred embodiment includes a base plate securable to a vehicle floor board by conventional fasteners such as bolts or screws. A centrally disposed fixed cylindrical pedestal extends upwardly from the base plate into an open bottom end of a tubular vertical support column. A first set screw secures the support column in a rotationally and vertically adjusted position to the pedestal. A mounting standard includes a straight lower leg portion secured in a telescopically adjusted position within an open upper end of the vertical support column by a second set screw. An upper leg of the mounting standard is inclined at a forty-five degree angle relative to the longitudinal axis of the support column. A third set screw adjustably secures an upper end of the inclined upper leg of the mounting standard in telescoping relation within a mounting socket.