The complete bundle with all 9 guides:

• The Lactate Guide Part 1
• The Lactate Guide Part 2
• The VO2max Guide
• Running Economy
• Durability
• The Altitude Guide
• The Heat Guide
• The Threshold Guide
• The Peak Guide

Over 1,600 pages of sport science, 250 figures, and with every guide a full list of the sources it rests on.