J. K. Rowling's Harry Potter series is without question one of (success) ....... book series of all time. It is beloved by children and adults alike and continues (grow) ........ in popularity. However, she (not write) ......... it while she lazing around in luxury, being (support) ....... by family money. No – when she created the first book, she (struggle) ...... with severe depression because she was jobless and broke. She was the first author who officially became a billionaire (simple) ...... thanks to her novels. But J. K. Rowling is also famous for her philanthropy and (donate) ...... part of her fortune to support medical research.