With proper guidance, any person in reasonable health can run a marathon. Jeff Galloway, a well-known running trainer, is that sane and wise guidance. Galloway introduces an amazing discovery: both novices and veterans can better their overall time and enjoyment during a marathon by walking at prescribed times. This counterintuitive technique is laid out nicely here with lots of expert encouragement, backed by Galloway's experience in helping hundreds of marathoners at sundry levels try the unthinkable: race faster by resting your legs.