Just William is the first book of children's short stories about the young school boy William Brown, written by Richmal Crompton

Richmal Crompton

Richmal Crompton Lamburn was a British writer, most famous for her Just William humorous short stories and books.-Life:...

, and published in 1922. The book was the first in the series of William Brown books

Just William series

The William Brown series, better known as the Just William series, is a series of thirty nine books written by English author Richmal Crompton...

 which was the basis for numerous television series, films and radio adaptations. Just William is also sometimes used as a title for the series of books as a whole, and is also the name of various television, film and radio adaptations of the books.