Many people helped with this project, including hundreds of people who have written, taught, and taken action to promote diversity and inclusion. We are especially grateful to Mia Blume, s.e. smith, Sara Sperling, Heather Wilson, Eric Wingerter, and Brianna Wu for their contributions to this project. We also thank our reviewers who shared helpful feedback and their experiences on a tight schedule: Cristina Cordova, Stripe head of Bizdev; Mike Curtis, Airbnb VP Engineering; Griffin Gaffney, Stripe New Business; Harry Glaser, Periscope Data co-founder and CEO; Marc Hedlund; Luke Kanies, Puppet founder and CEO; Kate Mitchell, Scale Partners co-founder and partner and National VC Association Diversity Task Force co-chair; Dan Teran, Managed by Q co-founder and CEO; Yishan Wong; and Dennis Yang, Udemy CEO. Thanks also to B, Kaurwn Bliss, Dominique DeGuzman, Nicole Tompkins-Hughes, and Amanda Warner for help with case studies, @ForgottenTowel for help with our logo, and Bronwen Clune for help with metrics and surveys.