Barnes Wallis is best known as the "boffin" behind the bouncing bomb used by 617 Squadron to breach the Ruhr dams in 1943, but his work covers a far wider canvas. It ranges from airships, through novel aircraft structures and special weapons, to long-range supersonic aircraft and an extensive patent portfolio. This book describes the huge  breadth of Wallis's work, showing how his genius brought totally new ideas into these various fields , and revealing the science and engineering expertise that he deployed to make them work. Extensive use of illustrations - both line artwork and photographs - demonstrates the concepts involved.