This revolutionary training method has been embraced by elite runners - with extraordinary results - and now you can do it, too. Respected running and fitness expert Matt Fitzgerald explains how the 80/20 running program - in which you do 80 percent of runs at a lower intensity and just 20 percent at a higher intensity - is the best change runners of all abilities can make to improve their performance.

New York Times best-selling author and ultramarathoning legend Dean Karnazes has pushed his body and mind to inconceivable limits, from running in the shoe-melting heat of Death Valley to the lung-freezing cold of the South Pole. He’s raced and competed across the globe and once ran 50 marathons, in 50 states, in 50 consecutive days.

Every year, roughly 2 million people participate in marathons and half marathons in the United States, and, no matter what level they are, every one of these runners has likely hit “The Wall,” running out of muscle fuel in the final miles and slowing down precipitously. In The New Rules, renowned fitness journalist and training coach Matt Fitzgerald cuts through the myths, distilling the most up-to date science to help runners overcome the universally experienced nutritional barriers that prevent success in the marathon and half marathon.

In The Science of Running, elite coach and exercise physiologist Steve Magness integrates the latest research with the training processes of the world's best runners, to deliver an in depth look at how to maximize your performance. It is a unique book that conquers both the scientific and practical points of running in two different sections. The first is aimed at identifying what limits running performance from a scientific standpoint. In section two, we turn to the practical application of this information and focus on the process of training to achieve your goals.

The Nonrunner's Marathon Guide for Women is a fun training manual for women who don't believe that running is their biological destiny but who dream of crossing the finish line nonetheless. Dais' audiobook features a realistic training schedule and is chock-full of how-to's and funny observations, which she felt were lacking in the guides she had consulted.