what is forex trading ?

Hi, I did forex trading. Hope, u have understood about forex in previous ans. "HOW EFFECTIVE IT IS?" depends on ur skill. After u learn & good skill u can become a good trader, earning daily unbounded depeding on ur skill. But its risky that, u could have loose all ur money in 15 minuites & also earn a lot in 15 minuites. All u need , very good skill & good idea of market. You will find a forex brooker "MArketiva" on my profile. You can try that. That is one of the largest broker now a days & extra benifits of getting "FREE $5". Try it. Goodluck