His work's character can be said as a sculpture rather than glass. For example, he has adopted a space into his work through the medium of volume or carving in the round, or shared a casting method, which is one of major techniques of traditional sculpture. In here, he adds transparency a glass has. This helps that non-visible category and field rise to the surface of visible scope. 

His glass sculpture reveals and preserve silence in mind, which was trapped in a form or shape of sculpture. In addition, using the glass' own material characteristic, truth of silence can be intensify and used. By a slow cooling process, sculpture can keep bubble and liquidness inside, which look like a landscape of people's minds. Like this, his glass sculpture could be a metaphor of duplicity and double face in terms of ontology. And the metaphor is focused on finding an essence lost in human mind.
- Chung Hwan KHO (critic)

Courtesy of Kwanhoon Gallery