【餐巾紙財務課】 A handy crash course in personal finance, Napkin Finance is the groundbreaking guide everyone needs to help them manage their money and feel more secure. Surveys have found that two thirds of Americans can’t pass a basic financial literacy test, and nine in ten believe personal finance should become a required high school course. Tina Hay understands the confusion. While attending Harvard Business School, she struggled to keep up with classmates–many of whom came from the banking world–when it came to understanding jargon and numbers-heavy concepts. Tina developed a visual learning strategy using sketches and infographics that helped her succeed in her studies and master even the most complex financial topics.