While trade paperbacks are more presentable and easier to read than mass-market paperbacks, they have in many cases supplanted those less expensive books. For example, in the '60s, you could pick up a copy of John Updike's "Rabbit, Run," for as little as 65 cents in mass-market paperback, which when converted to 2002 dollars roughly equals $4. A 1991 mass-market paperback of the same book went for $5.99, which in today's dollars is roughly $8. Today, a new "Rabbit, Run" paperback is only available in trade paperback and goes for $14.