As the release of the fourth book in Karen Kingsbury's Bailey Flanigan series, Loving (March 27), approaches, the three previous books in the series are seeing big sales on the Kindle charts. Longing (#7), Leaving (#8), and Learning (#11) are all doing quite well for publisher Zondervan, but haven't been able to duplicate sales on the physical charts, as none of the books are ranked above #2,401 (the first book, Leaving, is actually four dollars cheaper as a paperback, but is only ranked #3,322).