editionAll the copies of the book made from a specific set of type (with the exception of minor alterations).
elephant folioDescription of the size of a book: about 23 inches high.
embossingA process which produces decorations raised above the surface (typically of printable material).
endpaperThe folded sheet of paper pasted to the inside of the front or back cover and attached to the edge of the first or last page of a hardcover book during manufacturing. Endpapers are not normally numbered.
erratum, pl. errataA correction of error(s) inserted into a book after it has been printed.
even folioPage numbers on the left-hand pages.
ex libraryA book with library markings on it.
ex librisA Latin phrase meaning, "From the Library of."