Facial expressions and animations are important aspects of the 3D environment featuring human characters. They are used in many kinds of applications, such as 3D games, interactive human/computer software, and movies. This book presents the recent developments of academic research for 3D facial modeling and animation. The technology includes: (1) a system for freely designing and creating detailed, dynamic, and animated facial expressions; (2) a novel approach for generating real-time vivid shedding tears; (3) a method for automatically placing bones on facial models to speed up the rigging process of a human face; (4) a new method to produce realistic expressions and animations by transferring an existing expression to a new facial model.