Facial Expressions for Artists is a great resource that guides the early-level artists with its step by step approach starting with basic anatomy (face and skull specific).

The sample faces, sketches/portraits in this book cover a wide range of faces (different ages, facial expressions, facial anatomies, etc.).

Thanks to above, we have a much-needed book for artists that is both inspiring and accessible informative.

The faces in this book are very diverse in age and race, so I think it would be useful as a reference for artists learning the differences between various faces. I also like how there are chapter break downs of the portions of the head and face with multiple examples for each one. It is clear that Oliver Sin is a very talented artist who aims to assist other artists in portrait drawing. This would be a great reference to refer back to for guidance and simply inspiration.