Lydiard's "Fundamental Principle of Training"

[@TravelTime_World]

Love this it's so basic in it's simplicity

[@bobbyfromstl]

Another great video! Thank you

[@Shevock]

That was one of the first books I read when I started running 2 years ago. Galloways Book On Running references it, and also Jack Daniel's Distance Formula. I also read Lydiards SI article from the 60s, Marathons for Milers. Great stuff.

[@CoachCarl]

He really is The Godfather -- glad he's still getting read by newcomers!

[@truth-Hurts375]

Perfect...but now people are addicted to Gadgets !!!!