Collapsible cart with shelf

A collapsible cart for transporting books, files, and other items, the collapsible cart comprising: a cabinet spine (202) having a first surface (204), a second surface (205), a first side edge (206), an second side edge, top one end edge and a lower end edge; a first extension (208) mounted generally perpendicular frame to the cabinet spine (202) along the first side edge (206) of the cabinet spine (202); a second extension (210) mounted generally perpendicular to the cabinet spine (202) along the second side edge of the cabinet spine (202); and a plurality of wheels (248) underneath the collapsible cart (200) for transporting collapsible cart (200) from one place to another; characterized in that: a first plurality of collapsible shelves (224) mounted on the first surface (204) of the cabinet spine (202) and between the second (210) spine first (208) and including each of the first plurality shelf (224) a narrower portion (228) fixed mounted on the first surface (204) of the cabinet spine and a wider portion (232) movable mounted on the narrower fixed portion (228) between the first extensions (208) and second (210) spine.