Jenna Fischer and Angela Kinsey will share their memories of their days at Dunder Mifflin in a new book, People magazine reports.

The two actors, who starred for nine seasons in the NBC hit sitcom The Office, are writing a book for HarperCollins imprint Dey Street Books titled The Office BFFs. The book will be based on their popular podcast, Office Ladies.

The publisher describes the book as an “intimate, behind-the-scenes, richly illustrated celebration” of the two actors’ friendship, and “an insiders’ view of Pam Beesly, Angela Martin, and the unforgettable cast of the hit series’ iconic characters.”

Fischer and Kinsey became friends while working on the popular comedy series set in a paper company in Scranton, Pennsylvania, which aired from 2005 to 2013. They started the podcast in 2019.

“It has just been such a joy for Jenna and I to do this,” Kinsey told Forbes in an interview. “We’ve been best friends for so long and we had this amazing journey together that was The Office.”

Fischer told People that the book, which will contain never-before-seen photographs, is “our opportunity to be even more personal and it’s also our opportunity to bring visuals to our stories.”

“We journaled all through The Office about everything,” Fischer said. “So, we’re able to go back and track the journey of both our friendship and of our time on the show.”

The Office BFFs is slated for publication in 2022.

Michael Schaub is a Texas-based journalist and regular contributor to NPR.