The Popularity Papers is a middle grade book series written and illustrated by Amy Ignatow. The first book of the series was published in 2010. To date, six sequels have been published. Book one: Research for the Social Improvement and General Betterment of Lydia Goldblatt and Julie Graham-Chang (Apr 2010) Book two: The Long-Distance Dispatch Between Lydia Goldblatt and Julie Graham-Chang (Mar 2011) Book three: Words of (Questionable) Wisdom from Lydia Goldblatt and Julie Graham-Chang (Oct 2011) Book four: The Rocky Road Trip of Lydia Goldblatt and Julie Graham-Chang (Apr 2012) Book five: The Awesomely Awful Melodies of Lydia Goldblatt and Julie Graham-Chang (Mar 2013) Book six: Love and Other Fiascos with Lydia Goldblatt and Julie Graham-Chang (Oct 2013) Book seven: The Less-Than-Hidden Secrets and Final Revelations of Lydia Goldblatt and Julie Graham-Chang (Sept 2014)The books were later adapted into a television series, Popularity Papers, which premiered in 2023. Source: Wikipedia (en)