Abstract: The present invention provides a clip for holding a bookmark string to mark a place. The clip of the present invention includes a loop part (10), to which the bookmark string, to be placed between pages of the book, is knotted. The clip further includes an outer clip part (20), which extends a predetermined length from the loop part (10) and is supported on the outer surface of a binding part (B) of the book, and an inner clip part (30), which extends a predetermined length, greater than the length of the outer clip part (20), from the loop part (10) at a position spaced apart from the outer clip part (20) by a predetermined distance, and has a shape such that it approaches the outer clip part (20) from a proximal end thereof to a distal end thereof, and such that the distal end thereof is bent towards the outer clip part (20). Furthermore, the inner clip part (30) is elastically supported on the inner surface of the binding part of the book.