This book reproduces 50 works in the motif of "cave" and "myth" that Yokoo created for his exhibition held in 2014 at Kirishima Open-air Art Museum in Kagoshima. It is an official booklet for this event which was called, "Tadanori Yokoo's Journey to the Center of the Earth." The works are collected in full color, disclosing the essence of Yokoo's artistic philosophy. It is a must-buy for the fans of this internationally acclaimed artist.