The book "Sir Gawain and the Green Knight" was written about an incident in the court of King Arthur and Queen Guenevere in which a green knight challenges Arthur's knights to live up to their reputation for valor and awesome deeds. The knight Gawain answers the challenge, but is shown that he could be false and cowardly when death seemed to be imminent. Thereafter, he wears a green girdle around his waist to remind him not to be proud. Other literature read included "London Lickpenny", a satire on London and its expensive services and products, "Fall of Princes" by John Lydgate, social history by Thomas Hoccleve, "The King is Quair"" by King James I of Scotland about how he fell in love, "The Cuckoo and the Nightengale", and "The Flower and Leaf" on morality as secular common sense. Chaucer, Cicero, and Ovid were widely read. Malory's new version of the Arthurian stories was popular. Margery Kempe wrote the first true autobiography. She was a woman who had a normal married life with children, but one day had visions and voices which led her to leave her husband to take up a life of wandering and praying in holy possession. The common people developed ballads, e.g. about their love of the forest, their wish to hunt, and their hatred of the forest laws. About 30% of the people could read English. Books were bought in London in such quantities by 1403 that the organization of text-letter writers, book-binders, and book sellers was sanctioned by ordinance. "Unto the honorable lords, and wise, the mayor and aldermen of the city of London, pray very humbly all the good folks, freemen of the said city, of the trades of writers of text-letter, limners [illuminator of books], and other folks of London who are wont to bind and to sell books, that it may please your great sagenesses to grant unto them that they may elect yearly two reputable men, the one a limner, the other a text-writer, to be wardens of the said trades, and that the names of the wardens so elected may be presented each year before the mayor for the time being, and they be there sworn well and diligently to oversee that good rule and governance is had and exercised by all folks of the same trades in all works unto the said trades pertaining, to the praise and good fame of the loyal good men of the said trades and to the shame and blame of the bad and disloyal men of the same. And that the same wardens may call together all the men of the said trades honorably and peacefully when need shall be, as well for the good rule and governance of the said city as of the trades aforesaid. And that the same wardens, in performing their due office, may present from time to time all the defaults of the said bad and disloyal men to the chamberlain at the Guildhall for the time being, to the end that the same may there, according to the wise and prudent discretion of the governors of the said city, be corrected, punished, and duly redressed. And that all