Japanese honkaku writers rejoice! July 16, 2015 was a red-letter day! One of the most influential mystery reviewers in America, Michael Dirda (a Pulitzer Prize winner and an elegant writer) vowed, in his terrific review of The Decagon House Murders, to discover more honkaku novels, starting with The Tokyo Zodiac Murders: http://www.washingtonpost.com/entertainment/books/the-decagon-house-murders-evokes-agatha-christie–in-japan/2015/07/15/628391ce-297c-11e5-bd33-395c05608059_story.html
It just so happened a few days earlier that my penpal Dokuta sent me this beautiful English-language page from the Honkaku Mystery Writers Club of Japan: http://honkaku.com/english.html