(James Gurney): Widely considered one of the best contemporary resources for understanding how light interacts with form and color. Figure Drawing: Design and Invention
This book teaches you to think in hue, value, chroma – not in "warm vs cool" folk rules. You will never again ask "what color should I use for shadow?" – you'll know it's a lower value, slightly shifted hue. (James Gurney): Widely considered one of the best
Simply reading a PDF won't make you better. You need a structured feedback loop: (James Gurney): Widely considered one of the best