 He was then the sole author of Max Contraction Training, a sequel which expanded on his views on Static Contraction and Power Factor forms of training.John Little is considered to be one of the world's foremost authorities on Bruce Lee, his training methods and philosophies.Selected by the Bruce Lee estate, Little is the only person who has ever been authorized to review the entirety of Lee's personal notes, sketches and reading annotations and to edit books on the subject of Lee's martial art and its far-reaching philosophical underpinnings.