General lighting to many functions
Visual comfort is essential for students searching or selecting a book and reviewing their choice. A well lit library makes it easy to navigate and find the right shelf, upon which the focus should switch towards the books. Ambient general lighting over social seating spaces, with task lighting above study desks, not only helps distinguish its purpose but also provides suitable light for reading, studying and mobile devises.
The best solution is separate vertical lighting on the shelves via a luminaire with asymmetrical distribution providing around 200–300 lx on the book spines.