Rag Paper
Papers with a complete or partial content of cotton fibers.
Ragged Left
The term given to right-justified type that is uneven on the left.
Ragged Right
The term given to left-justified type that is uneven on the right.
Register
The arrangement of two or more images in exact alignment with each other.
Register Marks
Any crossmarks or other symbols used on layout to assure proper registration.
Right Angle Fold
A term that denotes folds that are 90 degrees to each other.
Rub Proof
That stage of printed ink where the maximum dryness is achieved, and the ink will not smudge.
Runability
A term used to describe how well a paper runs on a printing press.
Runaround
A term given to text that that is adjusted fit around a photograph or illustration.
Running Head
A title at the top of a page that appears on all pages of a book or chapter of a book.
