Benjamin Franklin founded the Library Company of Philadelphia in 1731, one of the first subscription libraries in America. He published Poor Richard's Almanack yearly from 1732 to 1758 containing weather predictions, proverbs and advice. J.K. Rowling overcame many obstacles to become published and is now the first billionaire author in history due to the immense success of her Harry Potter book series, which has sold over 325 million copies worldwide and been translated into 65 languages. Printing technology has advanced significantly from the Gutenburg press used in Franklin's time to modern high-speed printing presses that can print over 18,000 sheets per minute.