It is disclosed a storage and picking system for storing and picking of articles in accordance with a picking order into order containers comprising: a storage zone; a working zone; at least one picking-work station; and a plurality of storage and retrieval devices, wherein each of the storage and retrieval devices comprises: a load-handling device; a vertical mast along which the load-handling device is supported vertically movable, preferably exclusively; and a ground-near travelling unit, wherein the travelling unit is connected to the mast; and a controlling device being integrated into the travelling unit; wherein the travelling unit is dimensioned such that and wherein the mast is arranged such that the storage and retrieval device can travel, for purpose of storing or retrieving, in the travelling direction beneath one of the racks while an other storage and retrieval device can pass the storage and retrieval device in the rack aisle; an wherein the storage and retrieval device can travel autonomously within each of the zones and between the zones in the travelling direction along a travelling path which is selectable freely.