These files were assembled for an online course taught some years ago. Each of the files can stand alone, and though there is an organization to the file sequence, various selections and sequencing of files can be made to suit a variety of purposes.
The files are very long but contain very little text; instead, the files consist of captioned images arranged to form a narrative. The images are mostly drawn from public websites, which ae credited unless the source is obvious, such as Wikipedia or Google Maps. One other exception: uncredited photos come from greatmirror.com, a website of captioned photographs taken by the compiler of this website.
Comments or corrections may be sent to the compiler at SEC650@gmail.com