"Libraries, especially public libraries, provide lifelong learning opportunities for people of all ages in their communities. They serve as valuable resources for increasing awareness about environmental issues, in addition to storing knowledge. Green or sustainable libraries raise awareness about environmental issues through their collections, sustainable and ecologically friendly facilities, and public library programmes. Green libraries, for instance, maximise the impacts of natural sunlight and air flow; they are constructed with site selection, structural design, energy use, materials utilised, and human health effects in mind. This brings us to the definition of a green library.