I'm reading an article concerning the reconstruction of "relatively simple" polytopes from their skeletons and fall on this:
"Let $P$ denote a $d$-polytope and let $F_1,\dots,F_s$ be a shelling order of it's polar $P^*$."
What does this mean? On wikipedia I found the definition of shelling for a simplicial complex but not all polytopes are simplicial complexes.
Thanks for any help.