Lighting design is the art and practice of creating visual interest, ambiance, and functionality using light. It involves selecting the right amount, quality, and placement of light sources to enhance the desired mood, atmosphere, and tasks being performed in a space. 

A lighting designer considers factors such as the size and layout of the space, the activities being performed, the time of day, and the desired aesthetic to craft a lighting plan that is both functional and visually appealing. 

Whether it is a grand theatrical production or a small residential room, lighting design can elevate the look and feel of a space and create a truly transformative experience.