aizen kobo is an indigo dye workshop/studio/store in an old townhouse in the nishijin textile area of kyoto. it's very close to the nishijin textile center, if you are trying to find it you can ask here.
address : Nakasuji-Omiya Nishi, Yoko-omiyacho, Kamigyo-ku Kyoto 602-8449, JAPAN
hours: Monday-Friday 10:00 a.m.-5:30PM; Saturday,Sunday and National Holiday 10:00a.m-4:00p.m. call ahead for reservations.
hands-on dyeing workshop is only available on days when it's not raining, since the dye vats are in an outdoor courtyard.
i would definitely recommend visiting aizen kobo for anyone interested in learning more about japanese indigo. the people who run it are great, very friendly, and enthusiastic about speaking english. the photo above is one of the lovely large tatami rooms where the indigo dyed products are displayed.