Let $P$ be a finite poset of width two, i.e., with no three-element antichain. We associate with $P$ a skew Young diagram $Υ(P)$ and discuss some of the properties of the map $Υ$. In particular, if we regard $Υ(P)$ as a poset in a standard way, then the linear extensions of $P$ are in bijection with the order ideals of $Υ(P)$.