Custom CMS block displayed at the left sidebar on the Catalog Page. Put your own content here: text, html, images, media... or whatever you like.
There are many similar sample content placeholders across the store. All editable from Theme Editor.
[gallery] I am happy to present my most recent jewelry piece - sterling silver “Vine” bracelet with tourmaline and prehnite cabachons. Fresh, graceful and and a little whimsical. I also decided to add pictures of my work, a glimpse behind the scenes. http://www.anastasiasavenko.com/index.php/bracelets/vine-bracelet-detail