Abstract: A pick and stow system includes a conveyor system having a plurality of interconnected modules forming a continuous conveyor, each module having a first side and a second side and each configured for forming a shelf on both the first side and the second side. The system also includes a conveyor driver coupled with the conveyor and configured for driving the conveyor, thereby presenting one of the plurality of modules at a loading location for loading or removing an item onto or from the shelf of the module. In some embodiments, a first wheel and a second wheel are each configured for coupling with each of the plurality of modules of the conveyor as the conveyor is driven about the first wheel and the second wheel, such that the conveyor has two substantially vertical sections and a curved section at each of the first and second wheels.