Esri's Training Team has released a new Imagery Change Detection Learning Lab. This lab is free to use by everyone, and is designed to teach participants on the use of imagery analysis tools in the Image Analyst Extension. The training example is detecting changes to mangroves using Landsat 8 imagery. All the data you need to work the lab is available for download. The lab is a great way to familiarize yourself with the remote sensing capabilities of ArcGIS.
Access the learning lab using this link: https://www.esri.com/training/catalog/6410bed04d750615175b4276/performing-change-detection-using-ras...