The document provides key lessons and takeaways from a managerial finance course. It defines important concepts like nominal and real returns, diversifiable and non-diversifiable risk, and the capital asset pricing model (CAPM). It also outlines how to calculate bond yield, a firm's cost of capital using weighted average cost of capital (WACC), and discusses the refunding process for bonds. Other topics covered include internal rate of return (IRR), net present value (NPV), working capital, and the cash conversion cycle. Derivatives like warrants and interest rate swaps are also briefly explained.