Volume - love it or hate it?Here in the UK we have a product called Marmite. It is a deeply divisive food, which you either love or hate. Those who love it, cannot understand how anyone could live without it - and of course, the opposite is true for those who hate it!This sentiment could be applied to volume as a trading indicator. In other words, you are likely to fall into one of two camps. You either believe it works, or you don't. It really is that simple. There is no halfway house here!You can be lucky too!I make no bones about the fact that I believe I was lucky in starting my own trading journey using volume. To me it just made sense, and the logic of what it revealed was inescapable. And for me, the most powerful reason is very simple. Volume is a rare commodity in trading - a leading indicator. The second, and only other leading indicator, is price. Everything else is lagged.It's a simple problem...As traders, investors or speculators, all we are trying to do is to forecast where the market is heading next. Is there any better way than to use the only two leading indicators we have at our disposal, namely volume and price?..And such a powerful solutionIn isolation each tells us very little. After all, volume is just that, no more no less.