To provide a three-dimensionally available desk on which a computer device, etc., can be mounted while maintaining the availability of a book stand.

The book stand 12 is arranged on the side of the upper surface of a rear top plate 21. At this bookstand 12, supporting members 40 are connected to the sides of the rear/lower ends of side walls 25 constituting the book stand 12. The members 40 are provided on the rear end face 13A of a side wall member 13 on the side of a desk main body 11 in the state of being capable of fixing at the position of an optional height, thereby the book stand is position-adjusted in a vertical direction. When the book stand 12 is at a raised position, a space for mounting the computer is formed between with the top plate 21.