As Britain is learning the genre can fill entire polls with tomes os quackish and histrionic as their covers  but there are worse For every selfhelp title published thousands are rejected as too derivative or specialised This is no small mercy As a new breed of heavyweight editorcumogent goes looking for the next lightweight blockbuster prose style is the lost thing on anybodys mind Marketability is everything How promotable is the author Whats the hook Is it universal enough Ms Reverend rattles off the key questions then admits If someone comes to me with a really catchy title thats two thirds of the battle won You know you can reach people