Thank you for viewing. This is the "Illumination Basics Textbook" published by the Illuminating Engineering Institute of Japan. It systematically covers everything from the basic theory of illumination to light sources, lighting fixtures, lighting design, and residential lighting. Although it's a textbook from about 20 years ago, the fundamental concepts are still relevant today. Suitable as a reference for those studying architecture, interior design, or electrical engineering. It shows signs of use, but there are no issues with reading it. Please check the photos for the condition. It will be carefully packaged with waterproof protection and shipped. Instant purchase is welcome.