Prompt
Create a realistic portrait of Daniel Kahneman, a renowned Israeli-American psychologist and economist, sitting in a quiet, study-like environment surrounded by books, with a thoughtful expression. He is an older man with a gentle face, wearing a pair of reading glasses and a warm smile. Incorporate subtle hints of his notable works, such as "Thinking, Fast and Slow" and "Prospect Theory", in the background. The style should be a photorealistic oil painting.