Abstract: An expandable, collapsible barrier includes first and second endposts connected by an expandable, collapsible lattice structure. The barrier is provided with a handle mounted to one of the endposts and a handle receiving tube mounted to the other of the endposts. The handle receiving tube can receive the handle of a second barrier to hingedly interconnect two barriers. A latch bar is pivotally mounted to one of the end posts and a sleeve is provided on the other endpost. The latch bar and sleeve cooperated to lock the barrier in a collapsed position. When in the collapsed position, the barrier can be carried by the handle. Mounting brackets are provided for placing flags, lamps, and signboards on the barrier. The signboard bracket enables the signboard to be level at all stages of expansion of the barrier without the need to adjust the signboard.