Over the past decade, capital market financing has increasingly replaced the more traditional ways of financial intermediation. In turn, this has made financial institutions as well as corporations more vulnerable to market risk. At this course, we shall present and discuss the state of the art techniques of measuring and managing this type of risk. We shall start with a general definition of "market risk", and we explain how this type of risk correlates with other types of risk. We then look at how the various types of market risk are measured at the single-position as well as the portfolio level. We start with equity risk, explaining the difference between systematic and unsystematic risk and important key ratios such as "beta". We then show how FX risk is measured, from an "economic" as well as an "accounting" perspective. Further, we give an in-depth explanation of how interest risk is measured. We present and interpret important key ratios such as duration, modified duration, BPV, convexity and key rate duration, and we explain the use of these key ratios in risk management. We also briefly discuss how energy and commodity risks are measured. Further, we show how market risks are measured at the portfolio level, carefully explaining important concepts as "correlation", "diversification" and "marginal risk". We shall also present and examine the concept of "Value at Risk", which is widely used by financial institutions as a measure of aggregate risk. Finally, we explain how market risk can be managed using derivatives. We give an overview of the different types of derivatives and discuss their advantages and disadvantages. Using practical examples, we demonstrate how derivatives are used to mitigate the various forms of market risks at the single instrument as well as the portfolio level.