Prompt
Create a realistic image of N. Gregory Mankiw, a middle-aged American economist and professor, sitting in a Harvard University office or standing in front of a bookshelf filled with economic literature, with a warm and approachable expression. He should be dressed in business casual attire, possibly with a Harvard University tie or pin. Include some subtle hints to his notable works, such as a copy of "Principles of Economics" or "Mankiw's Macroeconomics" on his desk or bookshelf. The style should be formal and professional, reflecting his academic and professional achievements.
