I wouldn't say that everything he says isn't true-he does have a pretty good general knowledge of the skills. Most people would say that he's more ......quite prone to exaggeration and embellishment. Just ask yourself what rings true and what doesn't in his (well, actually his ghost writer's) books and filter it through your common sense. Most of the info he gives is true enough, just don't swallow his stories hook line and sinker. There are plenty of people who are just as (or more) knowledgable who will teach you things without turning you upside down and shaking your life savings out of your pockets.