This document provides a summary of key concepts in corporate finance, including:
1) The three fundamental principles of corporate finance - the investment, financing, and dividend principles - which guide business decisions and aim to maximize firm value.
2) The objective of maximizing firm value, which is the unifying goal of corporate financial theory, though it has some limitations and criticisms.
3) The investment principle involves investing in projects with returns above the minimum required rate based on risk, and properly evaluating project risks, returns, and cash flows.