“The 2017 elections boosted the confidence of exit pollsters – and their future competitors,” The Washington Post

Pew Research Center, polling resources, including “Can We Still Trust Polls?

American Association for Public Opinion Research online course for journalists

An Evaluation of 2016 Election Polls in the U.S.,” report by American Association for Public Opinion Research

20 Questions A Journalist Should Ask About Poll Results,” National Council on Public Polls