This website is dedicated to Nikolai Khomenko's correspondence with his students and colleagues. If you have corresponded with Nikolai on any aspect of OTSM-TRIZ, please make his ideas available to the wider community by sharing them here. If you would like to read the letters published here, please use the tags on the right. Most of the letters published on the site so far are in Russian, so you might want to look at that section of the site as well.