Recurring topics in her work include historic, cultural, social and geographic origins; family ties, relationships, memory, history, trauma and obsession.

Haeussler's experiments were influenced by artistic positions of Wilhelm Lehmbruck and Joseph Beuys; she herself names Medardo Rosso as her most important inspiration.

While Haeussler was trained as a conceptual artist and sculptor, her work is not easily classified by method or genre: she has had solo-shows of sketches, drawings and sculpture as well as participatory, interactive pieces.

[3] Often years in the making, they derive much of their credibility from painstaking attention to site-specific detail and hyper-realist staging.

Initially she adopted a strategy of erasing herself and the conventions of presenting her work as "art" by creating environments seemingly built up and then abandoned by obsessed individuals (so called outsiders).