Daylighting is the controlled admission of natural light into a building to reduce electric lighting and save energy. It provides psychological benefits like improved mood and productivity. Good daylighting has been shown to boost worker productivity in offices, improve student performance in schools, and aid patient recovery in hospitals. The design goals of daylighting are to provide adequate light levels throughout the year, create uniform light distribution, allow for control and user adjustment, fully integrate with the building design, and achieve energy cost savings. Artificial lighting must be integrated with daylighting to effectively provide increased building-wide energy efficiency. There are various techniques for daylighting like window placement, shading, and lighting controls.