I wrote an article about the calligraphy exhibition of Master Ishitobi Hakkō, which I visited last month. It was definitely one of the most interesting exhibits that I have ever had a chance to see. Here is a link to first part (out of three in total).
Beyond Calligraphy | Blog | The calligraphy exhibition of master Ishitobi Hakkō (石飛博光), Tōkyō, July 2011, Part 1