Jack Countryman’s Graduation Books Surpass One Million Sold Popular gift book series continues to be a bestseller for the graduation season, year after year  Contact:             Stefanie Schroeder, senior publicist 615-804-9244 Stefanie.schroeder@harpercollins.com (Nashville, Tenn.) April 21, 2015–Thomas Nelson announced today that the bestselling gift books, God’s Promises for Graduates and God’s Answers for the Graduate™ together have surpassed one million copies sold worldwide.  Year after year, these books continue to be inspirational bestsellers during the graduation season, helping high school…