By Molly Wetta on Other Articles in this Series: Blockbuster hits like Twilight, The Hunger Games, and The Fault in Our Stars put young adult (YA) fiction in front of adult readers. In fact, according to a 2012 Bowker study, "Understanding the Children's Book Consumer in the Digital Age," the majority of YA buyers, at 55 percent, are adult-and of those, 78 percent are buying for themselves.