The plan should be adapted to probabilities and possibilities of
growth and development.

Simplicity of decoration is essential in the working rooms and reading
rooms.

The building should be planned with a view to economical
administration.

The rooms for public use should be so arranged as to allow complete
supervision with the fewest possible attendants.

There should be throughout as much natural light as possible.

Windows should extend up to the ceiling, to light thoroughly the upper
part of every room.

Windows in a book room should be placed opposite the intervals between
bookcases.

In a circulating library the books most in use should be shelved in
floor cases close to the delivery desk.

A space of at least five feet should be left between floor cases. (If
the public is excluded, three feet is ample.)

No shelf, in any form of bookcase, should be higher than a person of
moderate height can reach without a stepladder.