Beginners treat the thumb as a fifth finger. It is not. It is a rotated, modified radius.
The book is designed as a visual reference for artists (sculptors, illustrators, and 3D modelers) rather than a dense medical text. Beginners treat the thumb as a fifth finger
This is the chapter that makes the PDF exclusive worth its weight in gold. Many free JPGs online crop out the tendon glides. The full PDF preserves the and the Extensor expansions (the little wing-like tendons on the back of the fingers). Beginners treat the thumb as a fifth finger