Paperback is a resurrection of the practice of designing different typefaces for use at specific sizes. This process of mastering has largely fallen by the wayside since the demise of cut metal type. With modern technology, it is now possible to use any typeface at any size. However, this often does not yield optimal typographic results. A font that is intended for display applications may not perform well in text settings. Likewise, a font designed for text applications may not be appropriate in display sizes. Designers have attempted a "one font size fits all" paradigm, but this strategy nearly always results in inflexible typefaces that lack the sturdiness needed for text and the sophistication desired for display. John Downer ingeniously solved this problem in the Paperback family by drawing fonts that are optimized for use in specific size ranges, allowing the family to prosper in a wide range of situations.