The odds may not be ever in the industry’s favor, but they sure seemed to be in 2012: sales of children’s and YA books were up 13.1%, to $1.68 billion, over 2011 numbers. The big story, of course, was The Hunger Games trilogy, which helped drive hardcover revenue up 11.2% to $828.9 million. Though things weren’t entirely rosy – paperback sales dropped 4.5 percent, to just under half a billion dollars – e-books made great strides, and now represent almost 14% of all children’s sales, at $232.8 million in 2012.