Elaine Lobl Konigsburg is an American author and illustrator of children's books and young adult fiction. She is one of five authors to win two Newbery Medals, awarded annually for one contribution to American children's literature.
She submitted her first two manuscripts to editor Jean Karl at Atheneum Publishers in 1966, and both were published in 1967: Jennifer, Hecate, Macbeth, William McKinley, and Me, Elizabeth and From the Mixed-Up Files of Mrs. Basil E. Frankweiler. They made her the only person to win a Newbery Honor and the Newbery Medal in one year. Konigsburg won her second Newbery Medal in 1997 for The View from Saturday, 29 years later, the longest span between two Newberys awarded to one author.