Books by Gretchen N. Peterson (PetersonGIS, Seattle, Washington, USA)

Gretchen Peterson is a certified GIS professional (GISP) and the founder and principal of PetersonGIS. Her work focuses on analysis of geographic data to solve natural resources management issues. In the course of this work, she has made innumerable maps and map- related products that present results elegantly and informatively. She is based near Seattle, Washington.