The terms revised edition and nth edition, revised are sometimes used by publishers when the book has been editorially revised or updated but for some reason the author or publisher does not want to call it the n+1th edition (where n = previous edition number).
Conversely, they may decide to call a version that is really not very different a "new edition" (n+1th).
The qualitative difference, then, between a "revised edition" and a "new edition" is subjective. This is analogous to the way that software publishers may call one update "version 3.7" but call the next update "version 4" instead of "version 3.8". The difference is their subjective sense of the significance of the change—that is, whether the differences constitute something very different or merely slightly different. Sometimes the distinction has more to do with marketing than with sound reasoning (that is, encouraging buyers to think that something slightly different is very different).
Read more about this topic: Edition (book)
Famous quotes containing the words revised and/or edition:
“Coming to Rome, much labour and little profit! The King whom you seek here, unless you bring Him with you you will not find Him.”
—Anonymous 9th century, Irish. “Epigram,” no. 121, A Celtic Miscellany (1951, revised 1971)
“I knew a gentleman who was so good a manager of his time that he would not even lose that small portion of it which the calls of nature obliged him to pass in the necessary-house, but gradually went through all the Latin poets in those moments. He bought, for example, a common edition of Horace, of which he tore off gradually a couple of pages, read them first, and then sent them down as a sacrifice to Cloacina: this was so much time fairly gained.”
—Philip Dormer Stanhope, 4th Earl Chesterfield (1694–1773)