1. Measure depth. Make sure your closet is deep enough to handle this task. Lots of closets are only slightly deeper than the width of a hanger. Take your binders, printer and scanner and place them on the closet floor and shut the door to make sure the shelves you install will accommodate them. (Remember you can orient your printer and scanner sideways if necessary). Also, figure out if your space is large enough to accommodate file cabinets; if so, make sure you install the desktop high enough so that you can slide them underneath.
Sectioning off a space helps keep work chaos in check. While this is a busy and clearly much-used work space, it is divided by shelving and storage to keep it invigorating, but not distracting. Plus it's tucked away in this little space so delicately.