Throughout this book, we will provide code examples to illustrate the topics that are covered. To make the techniques that were described previously as useful as possible in your professional life, we are relating our examples to a fictitious financial trading company, named MV Trading. The company name originates from the combination of the first name initials of your dear authors. Coincidentally, the initials also form the Unix file move command, symbolizing that the company is on-the-move! Since inception one year ago, MV Trading has operated successful stock trading strategies for a small pool of clients. Software infrastructure has been rapidly built in the last twelve months to support various arms of the business. MV Trading built software to support real-time trading (that is, buying and selling) on various stock market exchanges, and it also built a historical trade execution analysis to create better performing trading algorithms. If you do not have financial domain knowledge, do not worry. With each example, we also define key parts of the domain.