Maxwell trained in London at the Clapham School of Art, the Slade School of Fine Art, and the Royal College of Art. He was soon writing and illustrating extensively for The Yachting Monthly and other magazines. In about 1909, he became a regular correspondent for the Daily Graphic and the weekly illustrated paper The Graphic and continued to do so until it closed in 1932. In later life he wrote weekly illustrated articles for the Church Times.Most of Maxwell's thirty or more self-illustrated books were about voyages in foreign parts (Europe, Mesopotamia, Palestine, India) and later about the sights of Southern England. He also illustrated books by many other authors, including Rudyard Kipling, to whom his mother was related.