Many bureaux Mazarins are kneehole desks, in that they are meant to be used sideways, with one knee only beneath the work surface. They were designed in an age where only the nobility or those who followed its customs closely, could afford to have such desks made. Members of the nobility often wore a ceremonial or practical sword, which was forever in the way. It was thus easier to use a desk sideways, with only one knee under it. The rest of the space next to the knee often served as a lockable storage space.
Some bureaux Mazarin were used as dressing tables instead of serving as desks.
Most of them were built in an ornate style which looks like a nightmare to keep clean.
Note that the very rough images drawn up originally to illustrate this article show none of the extremely ornate decorations frequently applied to the front and sides of such a bureau. They were meant only to give an idea of the form
See also the List of desk forms and types.