Any good book on technical analysis will do. You can then go short either via a broker, or with spreadbetting firms. Otherwise, you can play options, but this may be a bit more complex. In principle, as long as securities trend down, you just go short and make money..in actual fact..not even this is that easy!
But it's thanks to our sponsors that access to Trade2Win remains free for all. By viewing our ads you help us pay our bills, so please support the site and disable your AdBlocker.