Israeli literature is primarily poetry and prose written in Hebrew, as part of the renaissance of Hebrew as a spoken language since the mid-19th century, although a small body of literature is published in other languages, such as English. By law, two copies of all printed matter published in Israel must be deposited in the National Library of Israel at the Hebrew University of Jerusalem. In 2001, the law was amended to include audio and video recordings, and other non-print media. In 2013, 91 percent of the 7,863 books transferred to the library were in Hebrew. The Hebrew Book Week is held each June and features book fairs, public readings, and appearances by Israeli authors around the country. During the week, Israel's top literary award, the Sapir Prize, is presented.[citation needed]

Israeli literature is primarily written in what?