Robert McKim, who taught design at Stanford, argues that contemporary education overemphasizes verbal and mathematical thinking while neglecting visual imagination. This book provides exercises and frameworks for developing visual thinking as a complement to other cognitive modes. McKim draws on research in perception, cognition, and creativity to show how mental imagery, sketching, and three-dimensional thinking contribute to problem-solving and innovation. The book is practical, filled with exercises readers can try: visualizing rotated objects, sketching ideas quickly to capture possibilities, using diagrams to clarify complex relationships. McKim connects visual thinking to creativity, arguing that many breakthroughs in science and design originated in visual imagination before being translated to words or equations. The book influenced design education and the development of design thinking as a methodology. For engineers, designers, and anyone whose work requires solving novel problems, McKim offers tools for thinking beyond the verbal-mathematical modes that formal education emphasizes. The book remains valuable for developing underused mental capacities.