There is provided a height adjustable workstation, comprising a base (1), lower (3) and upper (5) desks, and a lifting mechanism (2) for raising and lowering the lower and upper desks relative to the base, the lower desk (3) for supporting a keyboard and the upper desk (5) for supporting a computer monitor. The upper desk (5) provides a substantially planar upper desk surface that comprises a fixed desk surface (7) of a fixed desk portion (6) and a movable desk surface (9) of a movable desk portion (8), when the moveable desk portion (8) is in a first position. In a second position the movable desk surface (9) is upwardly slanted relative to the fixed desk surface (7), to aid reading of any documents placed on the movable desk surface (9). A skirt (10, 12) fills a gap between the fixed desk surface (7) and the movable desk surface (9) when the movable desk portion is in the second position, to prevent trapping of human fingers.