Throughout his life Lewis Fry Richardson made many inspired contributions to various disciplines. Often his ideas were ahead of contemporary thinking, and preceded the technical means necessary for their practical implementation. He is best known for his wealth of important work on meteorology and his groundbreaking application of mathematics to the causes of war. But his field of interest was in no way limited to these and various aspects of psychology and mathematical approximation also benefited from his novel modes of thought. Richardson had a rare determination to trust his own ideas, even when they were not well received. These two volumes show that much of his thinking has long been underrated and that much of his work was ahead of its time.