Pt. I. Why form matters. Traditional views on form -- Comparing ordinary and elite runners -- The elements of form -- How form can enhance performance and prevent injury -- pt. II. Assessing and improving form. Assessing form -- Improving foot-strike patterns -- Upgrading shank angle -- Shortening stance time and increasing cadence -- Improving body lean -- Promoting positive posture -- Putting it all together -- pt. III. Form factors for running success. Running shoes and form -- Form considerations for special groups -- Running-specific strength training -- Integrating form work into your seasonal training.