LD+A is a magazine for professionals involved in the art, science, study, manufacture, teaching and implementation of lighting. LD+A is designed to enhance and improve the practice of lighting. Every issue of LD+A includes feature articles on design projects, technical articles on the science of illumination, new product developments, industry trends, news of the Illuminating Engineering Society, and vital information about the illuminating profession. Digital issues of LD+A are available to IES members only. Please login or join the IES today.