“The Drinkable Book” and “The Safe Water Book” are made with filter paper, which can convert polluted water into drinking water. The filter paper can remove 99.99 percent of bacteria in water, and only one page of the Drinkable Book can purify approximately 100 liters of polluted water, turning it into drinkable water. This product enables people to produce safe, clean, drinking water at a low cost. Based on the same technology as the “Drinkable Book,” the “Safe Water Book” is designed for easier use. It is inexpensive and includes 25 sheets of filter paper and a funnel that can be placed on the mouth of a plastic bottle during the filtering process.