The Wolf Prize is awarded to outstanding scientists and artists from around the world for achievements in the interest of humanity and friendly relations among people. It was awarded to Drs. Corkum, Krausz and L’Huillier for pioneering and novel work in the fields of ultrafast laser science and attosecond physics and for demonstrating time-resolved imaging of electron motion in atoms, molecules, and solids. Each of them made crucial contributions, both to the technical development of attosecond physics and to its application to fundamental physics studies.