2/24/2018 S-1 Table of Contents Create Paper. We introduced Paper in January 2017 as a collaborative surface to bring people and ideas together. With Paper, users can co­author content, tag others, assign tasks with due dates, embed and comment on files, tables, checklists, code snippets, and rich media—all in real­time. We designed Paper to be simple and beautiful so users can focus on the most important ideas and tasks at hand. 97 https://www.sec.gov/Archives/edgar/data/1467623/000119312518055809/d451946ds1.htm 105/235