Hadley Wickham is Chief Scientist at RStudio and a member of the R Foundation. He builds tools (both computational and cognitive) that make data science easier, faster, and more fun. His work includes packages for data science (ggplot2, dplyr, tidyr), data ingest (readr, readxl, haven), and principled software development (roxygen2, testthat, devtools). He is also a writer, educator, and frequent speaker promoting the use of R for data science. Learn more on his homepage, https: //hadley.nz/. Jennifer Bryan is a Software Engineer at RStudio and a member of the R Foundation. She part of the tidyverse team that collectively maintains >150 R packages. Jennifer maintains packages for importing tabular data (readxl, googlesheets4, readr, vroom), working with Google APIs (googledrive, gargle, gmailr), and simplifying development workflows (reprex, usethis, devtools). In her first career, Jennifer was an Associate Professor of Statistics at the University of British Columbia, where she created courses and programs in what we now know as data science. Learn more on her homepage, https: //jennybryan.org/.