There are over 600 million people in the world that don’t have access to clean drinking water. Dr. Teri Dankovich has developed The Drinkable Book that might be able to help those people. The pages in this book contain printed information on how and why water should be filtered and they are to be torn out to filter water. Each page contains nanoparticles of silver or copper that kill bacteria in the water as it passes through. All you have to do is tear out a paper, put it in a simple filter holder, and pour water into it. In 25 trials at contaminated water sources, in South Africa, Ghana, and Bangladesh, the paper removed 99% of bacteria. The end result was water similar to US tap water. There is still more work to be done but this book brings us one step closer to a world where everyone has access to drinkable water.