For those who really want to improve their market reading skills, I can highly recommend you to read 'Master the Markets' by Tom Williams.. It is all about volume spread analysis.. Really an eye opener to me and everything started to make sense.. VSA is a method to read big traders (hedge funds, banks, high net worth private traders and other institutional traders) intention, you know they are the primary market mover in this business

It is true that forex has no central exchange like bskl so volume are not recorded, but we as forex trader use tick volume to represent activity..