Carving Faces Workbook: Learn to Carve Facial Expressions and Characteristics with the Legendary Harold Enlow
Here's a recently published book that provides detailed instruction on carving faces in wood. Written by the renowned caricature carver, Harold Enlow, the book is directed at the caricature carver, but is a solid foundation for realistic carving as well. The author provides photos and step-by-step instruction on how to carve some of those tricky areas of the face such as the eyes, mouth, and ears. In addition to covering these specific parts, a few complete example faces are also included. This book is a valuable reference that comes highly rated!
Here is where you can get Carving Faces Workbook: Learn to Carve Facial Expressions and Characteristics.