Strings that do not contain spaces or slashes do not need to be enclosed in quotation marks. E.g.

MyDocument

Strings that do contain spaces or slashes must be enclosed in matching quotation marks: single or double quotes may be used. E.g.

'My Document'

Strings that contain single quotes be enclosed in double quotes. E.g.

"Adam's Documents"

Strings that contain double quotes be enclosed in single quotes. E.g.

'1/300"'