内容简介
Excellent,clearlywrittenhow-toguideprovidestime-testedadviceontrainingpowersofobservation,judgingproportionsofboulders,trees,cloudsandotherlandscapeforms;learninghowtoassessvalues(lightanddark),andmore.Includesvaluablesuggestionsforusingpencils,chalk,charcoalandothermedia.180lineillustrationsandhalftones.