Reddit mentions of Remote Sensing of the Environment: An Earth Resource Perspective (2nd Edition)

USDA, FBI, CIA, USACE, USNAVY, USARMY, USAIRFFORCE, USNPS, USF&W, HHS, USFS, NASA (for rocket launches) and multiple state governement agencies too, from my experience working with these data and professionals directly: TDEC, TWRA, TVA.

This is in no way an exhaustive list, and I can provide context for each of these groups. Mostly this is just from Jensen's Remote Sensing of the physical environment 2nd, which, even though is from 2006 and there is new data for these topics now, does a wonderful job of describing topics for those without STEM backgrounds.

The program itself (I learned on the 2013 version) comes with three guides, as I recall. The tour guide is the only one that comes to mind at the moment. Maybe the field guide is another. I used the tour guide primarily. The annoying thing was learning the program with the guides that were not updated. So if a lesson says it should take x amount of time, it will take more, due to you having to figure out where certain tools have been moved to.

Here is the 2010 tour guide, its probably the one I used.

I would also suggest taking the time to learn about the chip & subset tool, and supervised and unsupervised classification. Those are the most powerful tools I learned to use. I really like remote sensing, and would love to land a job doing at least some rs. Its a great way to create your own raster data.

If you are looking for reading on the topic of RS, I used two books by John R. Jensen, Remote Sensing of the Environment, and Introductory Digital Image Processing. The latter being the most useful imo.