Robotic automation and methods described herein can be used to enhance the efficiencies of order fulfillment and inventory stowage processes. For example, this document describes the use of mobile robots in conjunction with a human order picker to pick and transport items for order fulfillment processes in an efficient manner. The described systems and methods allow the elimination of human labor particularly related to transporting saleable goods and similar items. Mobile robots take over many of the tasks related to transporting the picked items. Accordingly, the efficiency of the human order picker, as measured by the number of line items picked per hour for example, is greatly enhanced.