The Filter Bubbler refers to the personalization processes taking place on the Web, which shape what content you see and more important what content you don’t get to see. Big players like Google and Facebook feed you what they think you want, based on secret profiles of you to which you have no access. In short, you may end up in a bubble of fabricated interest, based on your personal profile of which you have no control and which you cannot correct. This book addresses these personalization processes and what their future implications might be, ranging from the doing of good to the pure evil.