"John Harper's Vertigo Profitability" is a fascinating book written by the author Purcell Dick, which makes you think about the true values in the modern world. This book tells the story of John Harper, who was entrusted with enormous success, but with it came enormous challenges. Through his mistakes and losses, he learned to see the world from a different perspective and realized that true happiness lies in other values. Readers look forward to learning what each of us needs for true happiness. "John Harper's Dizzying Profitability" is a book that will transform the way you think about success and happiness.