"In the old, constrained world, somebody had to select, print, and distribute what was worthy of royalty, shelf space, and killing trees. That somebody was an employee of a traditional publisher; he served as a filter, finisher, and arbiter of taste. Several thousand traditional publishers added this kind of value for hundreds of years. Shelf space for ebooks, however, is infinite, and anyone who can use a word processor can write and publish a book. These changes don't mean that books are better—no more than a democratic political system guarantees better leaders—but at least the system is more accessible."