Project Gutenberg was established more than 30 years ago ; making available full texts in public domain; readable to every computer. The books are full version in text format though other formats are also supported. Most of the books are literature such as novels, poetry, short stories and drama. New books are added every week. The collection includes books by great writers like Tolstoy, Rabindranath Tagore, Charles Dickens, Fyodor Dostoyevsky, Walt Whitman Hermann Hesse, to name few. The Project Gutenberg collection also has a few non-text items such as audio files and music notation files. More than 24 thousand books are listed on the site.