Forex is the largest market in the world and the most widely misunderstood. For this reason we wrote Splitting Pennies – Understanding Forex – to educate and entertain. As we explain in the book, in Forex there’s things which are possible simply not possible in other markets. For example, Forex trades all day and all night during the week. There’s no waiting for 9:30 am ‘market open’ – and while even Forex is closed on the weekends, some brokers offer the ability to trade on the weekends, with a wider spread.