This series provides an overview of light and optics, covering topics such as the nature of light, its properties, and the fundamental principles of optics. The posts discuss various aspects of light behavior, including reflection, refraction, and the formation of images. Additionally, the series explores geometric and wave optics, highlighting concepts like lenses, mirrors, interference, diffraction, and polarization. Lastly, it looks into modern optics and its applications in fields like medicine, telecommunications, lasers, fiber optics, and spectroscopy.