E.B. White, the author of twenty books of prose and poetry, was awarded the 1970 Laura Ingalls Wilder Medal for his children's books, Stuart Little and Charlotte's Web. This award is now given every three years "to an author or illustrator whose books, published in the United States, have, over a period of years, make a substantial and lasting contribution to literature for children." The year 1970 also marked the publication of Mr. White's third book for children, The Trumpet of the Swan, honored by The International Board on Books for Young People as an outstanding example of literature with international importance. In 1973, it received the Sequoyah Award (Oklahoma) and the William Allen White Award (Kansas), voted by the school children of those states as their "favorite book" of the year.