Iain MacNab - Action Poses

From Figure Drawing by Iain MacNab. Symbolic Figures in Various Actions. Two positions of the barrel-like form of the ribs. And a chalk drawing by Iain MacNab in Adolphe Armand Braun's Human Form

Figure drawing ("How to do it" series)

The Human Form in Art (Dover Anatomy for Artists)

Impressions of the Human Form

Etching by Iain MacNab.