Compiling many of the best lessons and techniques from classic North Light publications, Keys to Painting: Trees & Foliage will teach artists how to paint, pencil, or pen better looking pines, poplars and palms. Featuring expert advice from a variety of talented landscape artists, including: * Stanley Maltzman (pencil) * Claudia Nice (pen and ink) * Zoltan Szabo (watercolor) With exercises in pencil values, shading methods, setting a horizon line and sketching thumbnails, this book offers artists of all experience levels advice and practical methods for achieving more natural and realistic trees and foliage.