One edition can have many successive printings.
Publishers reprint an edition for as long as there is a demand for it.
Neuausgabe, Neudruck Trade edition - an ordinary edition. Limited edition - an edition limited to a fixed number of copies. The statement describing the number of copies and special features is called a notice of limitation. The date of a book is the date of the first impression of its edition. Later printings of the edition belong on the same record.