The document discusses "Shikake", which is defined as an embodied trigger designed to induce specific behaviors that solve social or personal issues. It provides examples of Shikake used to encourage behaviors like reducing littering, improving parking habits, influencing eating choices, and increasing exercise. The author leads the Shikake Lab at Osaka University, which has collected hundreds of Shikake cases and organized them into categories. The lab seeks to advance the field of "Shikakeology" through academic conferences and joint projects with the goal of using Shikake to make positive changes in society.