Tokyo Shoseki Co., Ltd. released the book 'The Science of Sleep' (written by Heather Darwall-Smith, Japanese edition supervised by Takeshi Sakurai) on April 27, 2026. The book offers a clear explanation of sleep using simple text and abundant graphics. It aims to reduce the anxiety of 'having to sleep' by providing pure scientific insights from neuroscience, anatomy, and psychology. Recognizing that there is no 'one-size-fits-all' approach, it serves as a self-help guide with visual infographics to help readers build personalized, sustainable sleep strategies. It is highly recommended for professionals seeking healthy, long-term sleep improvements based on reliable scientific evidence.