Google Earth Pro: A tutorial - University of Waterloo
https://uwaterloo.ca/library/geospatial/sites/ca.library.geospatial/files/uploads/files/google_earth_2016.pdf
WEBOVERVIEW. As of early 2015, Google Earth Pro, which used to be a $400 product, is now free. This is a powerful yet simple tool for viewing information geographically—whether it is viewing climate information, analysing change over time, seeing the world the same way you’re used to seeing, or remembering routes taken while on vacation.
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