This event was presented in partnership with the Professional Editors Network (PEN), www.pensite.org.

MBPR and PEN welcomed Russell Harper, principal reviser of The Chicago Manual of Style, for a discussion of the 18th edition! Harper detailed decisions behind some of the more significant changes in the new edition. This in-person event also included a Q&A opportunity.

Russell Harper has served as principal reviser of the last three editions of The Chicago Manual of Style, including the 18th, published in 2024. He is also the editor of The Chicago Manual of Style Online Q&A and the CMOS Shop Talk blog and contributed to the 8th and 9th editions of Kate L. Turabian’s A Manual for Writers of Research Papers, Theses, and Dissertations. Before working on The Chicago Manual of Style, Russell was a manuscript editor in the Books Division at the University of Chicago Press; before that, he worked in printing and typesetting.