Born in Chuncheon, Choi started writing poetry based on social injustices, inspired by Zen Buddhism. While working as an editor for a publishing company, he established literary magazines such as Jakga Segye and Hyeondae-si Sasang. He also established children’s literary series called Minum Donghwa. After serving as an environmental activist for ten years, he joined the faculty of Soongsil University, teaching poetry. He is the recipient of various literary awards including the Today’s Writer Award for his poetry collection Snowstorm Warning (Daeseol juibo), the Kim Soo Young Literary Award for Hedgehog Village (Goseumdochieeui maeul), and Daesan Literary Award for Grotesque (Geuroteseukeu). His Snowstorm Warning has been translated in French, and Grotesque and I am Everything Through Nothing in Spanish. His poetry collection, Autobiographies of Ice, was translated and published in Germany, Japanese, and Argentina. His eco-poetry selection, Flowers in the Toilet Bowl, was translated and published in the U.S. His other publications include seventeen volumes of poetry selections, children’s poetries, picture books, and comic poetries. He also collaborated with music composer Bang Sihyeok and producer Muzie to publish poetry books in music and rap formats for children.