Presents areas of study or practice to which computational techniques can fruitfully be applied such as climate change, epidemiology, air travel, and finance. Offers students an opportunity to understand the strengths and limitations of frequently used computing methods to tackle current open problems. Identifies ways to validate the results obtained with such techniques. Introduces the background needed to understand well-established numerical and computational approaches and explores their use through practical examples from different disciplines such as physics, chemistry, biology, and finance.