Filippo Menczer is a professor of informatics and computer science at Indiana University, Bloomington, and Director of the Observatory on Social Media. He has courtesy appointments in cognitive science and physics. He holds a Laurea in Physics from the Sapienza University of Rome and a Ph.D. in Computer Science and Cognitive Science from the University of California, San Diego. Dr. Menczer is an ACM Distinguished Scientist, a Fellow of the Center for Computer-Mediated Communication, a Senior Research Fellow of The Kinsey Institute, and a board member of the IU Network Science Institute. He previously served as division chair in the IUB School of Informatics and Computing, director of the Center for Complex Networks and Systems Research, visiting scientist at Yahoo Research, Fellow of the Institute for Scientific Interchange Foundation in Torino, Italy, and Fellow-at-large of the Santa Fe Institute. He has been the recipient of Fulbright, Rotary Foundation, and NATO fellowships, and a Career Award from the National Science Foundation. His research interests span Web and data science, computational social science, science of science, and modeling of complex information networks. His efforts have recently focused on the online spread of misinformation and the development of tools to detect and counter social media manipulation. This work has been covered in many US and international news sources, including The New York Times, Wall Street Journal, Washington Post, NPR, PBS, CNN, BBC, Economist, Guardian, Atlantic, Reuters, Science, and Nature. Menczer received multiple service awards and currently serves as associate editor of the Network Science journal and on the editorial boards of EPJ Data Science and PeerJ Computer Science.