This document defines different types of whisky and explains their production processes. It discusses malt whisky, grain whisky, blended whisky, and straight whisky. It also outlines the distinctive characteristics of Scotch whisky, Irish whiskey, Kentucky whiskey (bourbon), Tennessee whiskey, and Canadian whisky. The key steps in making whisky are malting, fermentation, distillation using either pot or patent stills, aging in oak barrels, and sometimes blending before bottling.