Abebooks.com has a notice about Penguin Books and how that company initiated the paperback revolution in book-publishing. Many of us will have trouble remembering when paperbacks were a novelty. Many books in Europe were published in paperbacks; but in the States, it seemed, they were only in hardbacks. The trend reached into Catholic publishing when Doubleday began its "Image Book" series in the early 1950's, I believe. I remember a high school teacher beingglad that important works were now being reprinted and made more popularly available, but that the price was so high: 65 and 75 cents a volume! I wonder if there is a list anywhere of the works published in that series.