Dear Colleagues, We are very excited to announce that Northwestern University and Northwestern Institute on Complex Systems (NICO <https://www.nico.northwestern.edu/>) is once again hosting the annual International Conference on Computational Social Science from July 12-15, 2018 <http://www.kellogg.northwestern.edu/news-events/conference/ic2s2/2018.aspx>. Our Call for Abstracts for presentations has just opened, and our chairs and committee members thought members of your group might be interested. Below are links with further information; feel free to forward to others if interested as well. *Conference Flyer:* https://www.kellogg.northwestern.edu/faculty/uzzi/IC2S2/IC2S22018- CallForAbstracts.pdf *Conference Website:* http://www.kellogg.northwestern.edu/news-events/conference/ic2s2/2018.aspx *NICO Website:* https://www.nico.northwestern.edu/ Sincerely, Yasmeen Khan Business Coordinator, NICO