AMERICAN SHELTER. An Illustrated Encyclopedia of the American Home

DJ : Short for dust jacket, a protective and often decorative wrapper, usually made of paper which wraps around the binding of a book.

chipped : A defect in which small pieces missing from the edges.

soiled : Generally refers to minor discoloration or staining.

4to : Or quarto. A term used generally to describe the approximate size of a book, a book that is about 10" to 12" tall and roughly squarish in shape. The term is based on the size of paper traditionally used by book printers which has been folded and cut into 16 pages.