This document provides an overview of key operations and functions within an insurance company, including ratemaking, underwriting, claims settlement, reinsurance, and investments. It discusses the roles of actuaries in determining insurance rates and reserves. It also describes the underwriting process, including evaluating applications, inspecting risks, and making acceptance decisions. Claims settlement and the different types of adjusters are also outlined. The document provides details on different types of reinsurance agreements and how losses are shared. It concludes with a discussion of investment principles for both life and property/casualty insurers.