This book introduces the TRIZ 3x3 system thinking method, a powerful problem-solving framework developed from over two million patented inventions. It explains how to use a simple nine-grid approach to generate creative ideas, communicate effectively, and tackle challenges in work and daily life. Suitable for professionals, students, and teams, the method is widely used by multinational companies, top inventors, and universities in Japan. The author, a renowned innovation expert, provides practical exercises and examples to help readers master this systematic thinking tool for proposals, presentations, and innovation.