Photography with photoshop has given birth to a illustration look popularised by photgraphers like Jill Greenberg, Jim Fiscus, Andrzej Dragan, Dave Hill and adopted later by other photographers like Tim Tadder and Joey Lawrence to name a few. For some reason, this look has become an online 'gotta have' effect . There is also a photoshop plugin called Lucisart to achieve this. One reason could be that this effect can be done on ordinary people(from babies to old wrinkled ones and even animals), instead of super models, to make them look more interesting like an illustration. Read more to find out the 'demystification' of these looks, the difference between them, lighting and editing wise.