Michael S. Hart was an American author and pioneer in the field of digital publishing. He is best known for founding the Project Gutenberg in 1971, which aimed to make literary works freely available in digital format. This initiative helped to kickstart the movement towards open access to literature and information on the internet. Hart was also an advocate for the importance of preserving cultural heritage through technology. He believed that making books available in electronic form would democratize access to knowledge and education. His contributions have had a lasting impact on the way we access and share written works today.