Pixologic offers 2 hours of their tutorial called Introduction to ZBrush 4R2, where Ryan Kingslien (he has taught at EA, Ubisoft, ILM and Sony Picture Imageworks) guides you through the all new features of ZBrush 4R2. This session which is focused on making zombie takes more than 32 hours including over 18 hours of new content covering features like DynaMesh, LightCaps, the Slice brush and CurveTubes. So you can step by step follow Ryan Kingslien through all the things you need to know about Zbrush.
ZBrush 4R2 features:
DynaMesh – is topological-free sculpting process and allows with a quick gesture, ZBrush will instantly generate a new sculpting-friendly model with uniform polygon distribution. This makes it possible for you to focus only on the visual aspects of your model, without worrying about its underlying geometry.
LightCap – allows to create your own custom lighting environment with the LightCap Designer
Slice brush – is use to add an edge loop with new PolyGroups on either side.
More about this session: ZBrush Workshops