I'd like to show you how to open a Landsat 8 image in ArcMap. If I go to the catalog pane, I'll use the thumb tag to keep that open. So, you'll notice that I have the Landsat 8 data in my folder here, and they have names that end in B1, B2, B3 and so on so that's band one, band two, band three, you get the idea. For very long filenames, I won't go into demystifying the whole thing here, but essentially it has to do with the path, the row, and path or where on the earth that image was taken and the date that it was taken. So, you can just for example drag and drop band three onto ArcMap into the data view, and that will load the image for you, and there you go. It's that straightforward, you can literally just drag and drop an image and be able to look at it. However, if you want to work with it in a multispectral way, for example, to create a band composite, there are other ways, there are other options that we can use to be able to view the data. So, I'll remove that for now, and you'll notice that there's this MTL.TXT file at the bottom. That's what Ezri refers to it's illustral object, and it's meant to be used for your convenience but it may not be obvious what it is at first. If we expand this, you'll see that there are raster datasets within that MTL file, that represent each of the bands from Landsat 8. They've helpfully named them for us. So, there's the cirrus band, the cloud band, the landcover band, multispectral. So, different combinations they put in here a panchromatic. So, this is meant to be helpful for us in terms of as a user being able to see what's there, but at least for me it's not always obvious what is exactly is this doing. Anytime a software company tries to do something for my convenience or add a shortcut, I'm always a little not suspicious, but I want to know for myself what's happening. So, what I can do, for example, is just drag this MTL file onto my data view. What this does, is creates a color composite version of that image that we can then manipulate here in the table of contents. So, for example, we can click on the red, and change which band is being represented by red in our RGB monitors. So, remember the difference here is that you have different Landsat bands so, it could be red near-infrared and so on, and then you have to assign each of those to a color that can be used to display it on your monitor. So, for example, I'm just going to pick one here. I could assign red to near-infrared, and so that's going to create a false color infrared image. If I zoom in here just so you can get a better look at it, you'll see this has created a net CIR or false color infrared version of the image. So, that's basically all there is to it, in terms of being able to add the data into ArcMap. One last thing I'll show you since I have it open here, is the image analysis window so we can go Windows, Image analysis, it start here. So, if I select that multispectral heading or that entry in the image analysis window, this then activates things like the NDVI filter. So, I can click the NDVI and it will actually calculate that for us, and I have the set up to use the scientific data, in other words, it'll give me NDVI results from negative one to positive one, and so that's really easy to use if you want you can change the properties, go to Symbology, and change it to the more conventional NDVI color scheme. So, that's a color scheme that might be more familiar to you. So, that's it. That's an easy way to be able to add Landsat 8 data into ArcMap.