Abrams says that Jeff Kinney’s DIARY OF A WIMPY KID: Cabin Fever, the sixth book in the series, sold “more than one million copies its first week on sale.” Abrams says that is a 25 percent improvement on the first-week sale for the previous book this time a year ago. (A year ago, Abrams said the first-day sale was over 375,000 copies.) They also declare it “the number one bestselling hardcover book in the U.S. for all of the calendar year.” Though perhaps not if you count only trade outlets, since traditionally a significant portion of Kinney’s sales come through […]