Everyday the world's stock markets carry out trades worth trillions of Dollars. Some of that business grabs the headlines whilst the rest largely goes by unnoticed. Given the volume of cash turned over each year and the crises that markets have to deal with, it's easy to see why some people prefer to leave the management of their money in the hands of so called market professionals. However in his new book "Success in the Stock Market", author and investor Dermod J Sweeney argues that anyone can play the financial markets…just as long as they have an understanding of how they work. Dermod J Sweeney spoke about the book and his top tips with Juliette Foster.