[1] Underpinning all of his work is an interest in how myth and artifice can shape and alter reality, especially regarding crop circles, UFOlogy, and other examples of urban legends and the paranormal.

[3][4][5] In the early 1990s he founded Circlemakers, an arts collective dedicated to exploring the phenomenon of crop circles and the role of deception in the process of artistic creation.

Lundberg and his collaborators – including Rod Dickinson, Gavin Turk, Simon Bill, Wil Russell and Rob Irving – followed after Doug Bower and Dave Chorley in anonymously creating their own crop circles at night.

Sometimes treated as not only authentic but as "significant" by paranormalists,[6] Lundberg and the Circlemakers' work has been the subject of a BBC documentary and been commissioned by various clients, including the rock band Korn.

[16] His feature-length documentary Mirage Men,[17] created with Mark Pilkington, Roland Denning and Kypros Kyprianou is about how the US government used mythology to cover up their advanced technology.