Abstract: An assembly is made of a flat writing instrument (1) and of an element (2) for holding the writing instrument (1) against a supporting surface of an exercise book or notebook, for immobilizing the instrument (1) in a storage position in which it extends parallel to the supporting surface. The element (2) is made of a body (21) having a first fixing face (211) which is intended to be applied to the supporting surface, and a second face (221) opposite to the fixing face (211) and carrying elements for immobilizing the instrument (1), the fixing face (211) carrying elements for fixing the holding element (2) to the supporting surface such that the element (2) can be fixed to the supporting surface without protruding from the exercise book or notebook.

Abstract: The object holder (1) includes a tongue (11) carrying at one end, by forming a connection area (123), a part (12) which is turned back toward the tongue (11), the object holder (1) being able, in a rest position of the object holder (1), to clamp a support (2) between the tongue (11) and the turned-back part (12), and, in a hooking position, to hold an object (3) by hooking, characterized by the fact that the tongue (11) carries a protrusion which is directed toward the turned-back part (12) and the free end of which is in contact with the support (2) in the rest position of the object holder (1), the connection area (123) being spaced apart from the support (2).