[ghaff]

When I really wanted to get away from everything in a library, there were always various cubbyholes in obscure corners of the stacks that you could hide in. This worked best in the sections of libraries that were more vertical than spread out though.

[mattlutze]

For us this was the motorized archive stacks in our library's basement. No one ever went down there, so you could pile up in one of the chairs and work for hours and see only one or two people.