There is no difference. There is no difference between Harvard vegetable soup and magic vegetable soup. This is the same book and the same cookbook. The authors are MarjorieDruker and ClaraSilverstein, famous people in the American culinary world. This book contains many delicious soup recipes, among which Harvard vegetable soup, also known as magic vegetable soup, is one of the most popular. This soup is easy to understand and delicious, and is deeply loved by readers and cooking enthusiasts.