The document discusses different types of water, including drinking water, hard water, soft water, mineral water, sparkling water, bottled water, spring water, reverse osmosis water, artesian water, boiled water, rain water, distilled water, and de-ionized water. Each type is defined and popular brand names are provided as examples. The types of water range from tap water and hard water high in minerals to processed waters like distilled, reverse osmosis, and de-ionized water that undergo filtration to remove contaminants.