Photographer Kishin Shinoyama's book of images "Kioku no Enkinjutsu," which he began in 1968, documents the graphic designer, illustrator and painter Tadanori Yokoo dressed as, and posing with, his personal idols.

Yokoo would wear matching or near-identical outfits to his celebrity partner, sometimes even impersonating them for the portraits.

The collaboration was put on hold when Shinoyama and Yokoo had difficulty scheduling time together. After Kishin joined Yokoo for a magazine project at the artist's home town of Nishiwaki in Hyogo, however, it was finally resumed and the book was published in 1992.

Though Yokoo often imitated famous people, including the renowned author Yukio Mishima, Shinoyama's images also reveal much about the artist himself; Oct. 11-Jan. 4

Yokoo Tadanori Museum of Contemporary Art, 3-8-30 Harada-dori, Nada-ku, Kobe, Hyogo. Oji-koen Stn. 10 a.m.- 6 p.m. (Fri., Sat. till 8 p.m.). ¥700. Closed Mon. 078-855-5607; www.ytmoca.jp