With his Leap-frogger, Heinz Friedrich has created an assemblage of basic geometric forms – a sequence of angular shapes that adds up to produce a leap-frogger in the act of jumping over a stooped static figure. Not only does the work convey dynamism and stasis, it also captures the contrast between physical weight and the fragility of the individual shapes. The colour scheme of alternating white, grey and yellow in loosely defined stripes and surfaces gives this figural composition an expressionist look that produces a homogeneous overall effect.