20 Minute Strength Workout for Women - Caleb Mercer

20 Minutes a Day At Home Strength Training - Victor Ramsey

52 Easy Routines for Tai Chi for Seniors for Walking - Gregory Mitchell

100 Walking Exercises for Seniors - Roger Callaway

52 Weeks of Walking Fitness for Seniors - Walter Bennett

The 10-Minute A Day Tai Chi Walking Weight Loss Guide - Bradley Reed