A comprehensive overview of corporate finance and security mechanisms, focusing on the distinction between debt and equity finance. The first source details equity finance, including the concepts of share capital, share premium, and the legal implications of various share transactions like allotment, buyback, and transfer, and the necessary statutory regulations and resolutions for each. The second source outlines debt finance and the different types of security lenders use, such as fixed and floating charges, mortgages, and personal guarantees, explaining how they protect creditors in case of default, alongside the registration requirements for such charges. Finally, the third source discusses the distribution of profits through dividends, the capital maintenance rule that restricts dividend payment to realised profits, and the differences between personal and corporate insolvency, highlighting the role of separate legal personality and limited liability.