Henly Joanna. Pocket Art: Portrait Drawing. The Quick Guide to Mastering Technique and Style

Rockport Publishers, 2018. — 112 p. — ISBN: 1631594699.The instructions are quick visual exercises in Pocket Art: Portraits, the first book in the new Pocket Art series.
This lively, graphic approach to explaining concepts will have you looking and learning with step-by-step illustrations and expert tips straight from London-based artist Joanna Henly (aka Miss Led). This compact 112-page book is just right for carrying in a backpack or pocket for when you're learning on the go.
Henly begins by guiding you through your initial set up, then moves on to "Understanding the Face." She takes you through every detail of capturing facial features and expressions, and mastering the rendering of hair and skin. Her exercises demonstrate and reinforce everything you learn as you go along.