Investment and financing are two different sides of the same coin. Investment refers to the use of financial resources in assets, machinery, or intangible assets, with the goal of increasing the invested capital. The acquisition of these financial resources is known as financing. Every economist must therefore engage with this topic during their studies. Investment and financing are fundamental components of business management. Wolfgang Patzig and Marcel Schützenmeister introduce the basics of the topic using a continuous example company and demonstrate the objectives of financial actions. They explain what you should know about dynamic and static methods of investment calculation. Additionally, they clarify what to consider in risk analysis, financial planning, and external and internal financing.