Story maps are 2-dimensional maps, in which major user activities are arrayed along the horizontal dimension, loosely ordered by time left->right, with tasks aligned along a vertical axis. These maps help in adding more detail to user stories in order to work out different features & processes for development.
See my Confluence page for more information on Story Maps.
The following is an embedded story map for the product, created in Figma.
https://www.figma.com/file/J36MtpNZfs1IEYJaVWO8wR/Story-Map-Rack.ly?node-id=0%3A1&t=At4evuBgLmHSTqwL-3Snapshots
Below are static images from the link, printed on specific dates in descending order from most recent.
xxxx/xx
(image here)