The library buildings were constructed in a number of styles, including Beaux-Arts, Italian Renaissance, Baroque, Classical Revival, and Spanish Colonial, to enhance their appearance as public buildings. Scottish Baronial was one of the styles used for libraries in Carnegie's native Scotland. Each style was chosen by the community. As the years went by James Bertram, Carnegie's secretary, became less tolerant of approving designs that were not to his taste. Edward Lippincott Tilton, a friend often recommended by Bertram, designed many of the buildings.