Pictures!  <------------ top level dir.
                                     (the only one you really need)  <------ medium size JPEGs  <------------ large JPEGs <- specific image

The specific reference is nice if you want to refer to a picture (for
a web page) without moving the image.  For example:

< p > This is my web page!  Click
< a href="" >here< /a >
to see what I look like. < /p >

                      or use a direct < img > reference:

< h1 >My Home Page< /h1 >
< img src="" >
< br >