Record numbers of runners are lacing up for everything from 5K races to marathons, according to industry association Running USA, and publishing is racing to meet the demand for books on the sport. In Older, Faster, Stronger by Margaret Webb (Rodale, Oct.), the author shares how running enhanced her life and health after age 50. Webb interviews trainers and scientists, and delves into the advances in medicine, health, and nutrition that are contributing to athletic achievement in women previously thought to be past their prime.

In The Running Revolution: How to Run Faster, Farther, and Injury-Free—for Life (Penguin, Sept.), two-time Olympic coach Nicholas Romanov provides beginning and experienced runners with information on how to run safely and efficiently. 80/20 Running: Run Stronger and Race Faster by Training Slower by sports and nutrition writer Matt Fitzgerald (NAL Trade, Sept.) suggests that runners can maximize performance by doing 80% of runs at lower intensity and 20% at higher intensity. These titles arrive on the heels of July’s Build Your Running Body by Pete McGill, Thomas Schwartz, and Melissa Breyer (The Experiment), which PW called “an informative, friendly guide” in a starred review; and August’s 1:59: The Sub-Two-Hour Marathon Is Within Reach by sports physician Philip Maffetone (Skyhorse).