This book is based on a series of seminars delivered over a period of many years to people working in the global financial markets. The material has expanded and evolved over that time. Participation on the seminars has covered the widest possible spectrum in terms of age, background and seniority, ranging all the way from new graduate entrants to the financial services industry up to very senior managing directors. What all these many and varied individuals had in common was a strong desire to understand how derivative products are used in practice, without becoming too involved in the more complex mathematics of the subject