You should know several things about “A Yankee Girl’s Guide to the South,” available as a Kindle e-book on Amazon.com, and Jillian Perry, the Bulloch Academy teacher who wrote it. First, to quote her first customer review, “Contrary to the title, it is not a self-help book.” That review, the only one on Amazon as of Friday, was contributed by Perry’s colleague, Bulloch Academy science teacher Karen Whitten.