Abstract
Long-baseline interferometry is one of the only techniques capable of providing milli-arcsecond spatial resolution observations which are needed to resolve the winds of massive stars. We present predictions of the interferometric observables of massive stars based on the non-LTE radiative transfer code CMFGEN and the Busche & Hillier (2005) code. We also show how dramatically different the monochromatic images of the most massive stars will look when they have a non-spherical wind.
