Learn all about nanosculptures, as created by Jonty Hurwitz through the use of ZBrush.
Rafael Grassetti - Design and Anatomy Package
Check out Rafael Grassetti's Design and Anatomy package, with over 5 hours of ZBrush character anatomy and design tutorials.
Ben Mauro - ZBrush for Environments
Ben Mauro has released a free 3D environment design tutorial using ZBrush, Keyshot and Photoshop.