L.J. Billion is a visual artist who's identity is unknown

Reflections, geometric patterns and colour are the focus of op art artist L.J. Billion's work. Because the artist works mainly with reflective materials, it's not so much the artwork you see, but rather the reflection of its surroundings. This means that an artwork never looks the same, depending on the time of day, lighting conditions, viewing angle, etc.
As the viewer is reflected in the artwork, they become part of it. This encourages many people to interact with the artwork through movement. Because of that, the artist calles his art "passive-kinetic".
Another aspect of L.J. Billion's work is repetition. What you see - often captured in a box - is a section of a whole, and can potentially be repeated indefinitely.
In addition to reflection, interactivity and repetition, L.J. Billion's work explores other topics. See for yourself!
The name L.J. Billion is a pseudonym. The artist appears in many photos as a reflection in the artworks, but always wearing a mask. His real name and identity are unknown.