The present-day IRS program was not formed immediately, though. We analyzed and summarized the experience of each IRS, starting from the first one, which passed successfully in 2008. Totally, 15 International Research Schools have been held so far - eight in the Moscow Region (2008-2014, 2016), one in the Kaliningrad Region (2015), three in the Republic of Sakha (Yakutia) (2017, 2018, 2022) and one in Kaluga region (2019), Online (2021). The 15th IRS was held in Kyrgyz Republic.