The term 'Bill of Fashion' is a phrase coined by American fashion designer Bill Blass. It refers to the idea that fashion should be accessible to everyone, regardless of their financial situation. Blass believed that fashion should be affordable and available to all, and he used his own designs to make this a reality. His designs were often seen as classic and timeless, and he was known for his use of luxurious fabrics and bold colors. Blass was also known for his philanthropic work, donating much of his time and money to various charities.