It is possible he made people around the world know King Arthur’ s life when he was very young better. This book about King Arthur probably is probably the most famous book about King Arthur . In his book, "The Sword in the Stone", he wrote, “On Mondays , Wednesdays and Fridays it was Court Hand and Summulae Logicales, while the rest of the week it was the Organon, Repetition and Astrology.” "The Once and Future King" was known by a lot of people in 1960.