The idea is that you place your subject in a white enclosure and shoot it with a lot of flash, where the light will diffuse nicely around the subject.
I got some unexpected results and found that some objects worked better than others in this set up. With a bit of experimenting most problems work themselves out eventually.
A lemon worked ok, but a much bigger orange did not have sufficient room to get illuminated evenly.
Perspective worked well too, so long as there was sufficient white space around them.
A big-ish ornamental box worked ok, but a much smaller crystal trinket washed out.