The document discusses various types of shares that can be issued by a company. It begins by defining what a share is, noting that it represents ownership in a company. Shares are categorized as either equity shares or preference shares. Preference shares provide preferential treatment to shareholders in terms of dividends and liquidation. There are various types of preference shares described, such as cumulative, non-cumulative, redeemable, non-redeemable, participating, and convertible shares. Equity shares are also discussed, including how they are classified based on share capital, definition, and returns. The document then covers topics like allotment of shares, irregular allotment, and the effects of irregular allotment.