This is the best portrait drawing book on the market. It is the only instructional book on classical portraiture that covers both the basics of proportions, anatomy, rendering as well as more advanced tips and techniques. The step by step examples are easy to understand, and the writing is witty and sharp (actually, hilarious at times).
As an art student, the instruction really clarified some of the confusion and frustration of trying to make a portrait look realistic without looking flat and stiff.
Whether you're a beginner or an expert, this book is a must have!