Hlavacs, George Michael The exceptionally simple theory of sketching : why do professional sketches look beautiful? / George Hlavacs. - 3rd printing - 35 pages : illustrations (some color) ; 23 cm + 14 sheets +14 Shading exercise ISBN: 9789063693343 9063693346 Nat. Bib. No.: GBB385648 bnb Nat. Bib. Agency Control No.: 016500155 Uk Subjects--Topical Terms: Drawing--Technique.Skizze.Zeichnen.Drawing--Technique LC Class. No.: NC730 / .H527 2017