101 Textures in Graphite & Charcoal: Practical Drawing Techniques for Rendering a Variety of Surfaces & TexturesSteven Pearce4
The Complete Book of Textures for Artists (Step-by-step instructions for mastering more than 275 textures in graphite, charcoal, colored pencil, acrylic, and oil): Step-by-step instructions for mastering more than 275 textures in graphite, charcoal, colored pencil, acrylic, and oilSteven Pearce
