TY  - BOOK
AU  - Hlavacs,George Michael
TI  - The exceptionally simple theory of sketching: why do professional sketches look beautiful? 
SN  - 9789063693343
AV  - NC730 .H527 2017
PY  - 2017///
CY  - Amsterdam
PB  - BIS Publishers
KW  - Drawing
KW  - Technique
KW  - fast
KW  - Skizze
KW  - gnd
KW  - Zeichnen
N1  - +14 Shading exercise
ER  -