Amazon's fulfillment centers move products from dock to truck through a mix of human workers and machines. Employees scan and stow items by hand, pick orders with wireless devices, and pack trucks like Tetris. Automation handles box selection and labeling, but most of the heavy lifting is still people.
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Every product sold by Amazon starts its journey the same way in a semi, the loading dock of a massive fulfillment center. Inside an army of workers unload the boxes and scan each item. And while there's automation everywhere, this is largely a job performed by people, not robots. A team of workers called stowers stash the items anywhere and as soon as something is sold, another worker, a picker, gets a notification on a wireless device almost like a gps. The Everything Kids giant books of jokes, riddles and brain teasers is picked from the shelf and sent packing software selects just the right box, even cutting off just enough tape to seal the box. Finished orders are stamped and labeled on a fast moving conveyor belt and they zip down a complicated series of slides routing the box to the right truck where another set of workers packs the truck in an impossible Tetris like task, squeezing in as many boxes as possible before the truck heads to its destination.