Explore Chapter 4 of a lecture presented at the 2017 E.FORUM National School Leader Development Training at Kyoto University, where Professor Hachiro Iwai from the Graduate School of Education discusses "Reading the Zero Era Through Data - The Shrinking Japanese Identity." Organized by the Education Practice Collaboration Center of Kyoto University's Graduate School of Education, this 20-minute segment offers insights into changing Japanese societal patterns and their implications for education leadership. Access additional chapters and related content through Kyoto University's OpenCourseWare platform.