The document discusses different classes of shares that companies can create, including ordinary shares, preference shares, non-voting shares, redeemable shares, deferred ordinary shares, and management shares. It provides descriptions of these common share classes and explains how companies have flexibility to set out various share class rights and attributes in their articles of association. Creating different share classes can be done for reasons such as attracting investors, making dividend payments to family or employees, and retaining control for original owners.