E.L. Konigsburg was an American author and illustrator, best known for her children's and young adult literature. Born on February 10, 1930, in New York City, she gained fame for her unique storytelling style and engaging characters. Her most notable works include From the Mixed-Up Files of Mrs. Basil E. Frankweiler and Jennifer, Hecate, Macbeth, William McKinley, and Me, Elizabeth. Konigsburg received several prestigious awards throughout her career, including the Newbery Medal and the Newbery Honor. Her writing often explores themes of identity, friendship, and the complexities of growing up, making her a beloved figure in children's literature. She passed away on April 19, 2020.