It also includes the managerial and financial aspects in library. They are various factors in library that will lead to the loss of corporate memory for example, during the Second World War proved to be disastrous for German libraries. It has been estimated that a third of all German books were destroyed although many of the most precious works have been preserved by storage elsewhere. Meanwhile, in 1937 hundreds of libraries in Ohio, West Virginia, Indiana, Illinois and Mississippi were destroyed by floods. Among other factors that will lead to the loss of organizational memory in library will include carelessness, accidental fires, arson, natural disaster, shelling and air attacks, poor storage facilities, lack of training and lack of staff