well, on the whole Id say 6/10. some of it is a bit too "squishy" for my liking. another thing to remember is that this book is from a consultancy company that the two blokes made up called lane 4.
I think it is more suited to fields with a protestant work ethic like athletics or working in a big business. there is alot of stuff about personal belief in yourself, motivation, dealing with stress etc.
So I mean its Ok if you like reading books like this for motivation but doesnt have any strong links with trading.