Cotter Koopman

is a graphic designer and music maker.

He loves to communicate data in new and resonant ways and would love to hug your dog.


Seasonality curves of the most-observed Michigan plants

Plaster Creek’s flowrate, hourly

3 years of Plaster Creek’s flowrate, in beads

The nextdoor stoplight as I sleep

A year of caffeine and alcohol

Hyperlocal dataviz zine, vol. 1

Temperature diamonds, 2019 “normals”

Bus fares, paid and/or checked.


Patterns of impossible player-piano music, coded in ORCA

Friends’ phone recordings resampled through a modular synth kaleidoscope

(Lastest) Annual Christmas charity mixtape