Diana Hacker personally class-tested her handbooks with nearly four thousand students over thirty-five years at Prince George’s Community College in Maryland, where she was a member of the English faculty. Hacker handbooks, built on innovation and on a keen understanding of the challenges facing student writers, are the most widely adopted in America. Hacker handbooks, all published by Bedford/St. Martin’s, include A Writer’s Reference, Eleventh Edition (2025); A Pocket Style Manual, Tenth Edition (2025); The Bedford Handbook, Twelfth Edition (2023); Rules for Writers, Tenth Edition (2022); and Writer’s Help 2.0, Hacker Version.

Nancy Sommers, who has taught composition and directed composition programs for thirty years, now teaches in Harvard’s Graduate School of Education. She led Harvard’s Expository Writing Program for twenty years, directing the first-year writing program and establishing Harvard’s WAC program. A two-time Braddock Award winner, Sommers is well known for her research and publications on student writing. Her articles “Revision Strategies of Student and Experienced Writers” and “Responding to Student Writing” are two of the most widely read and anthologized articles in the field of composition. Recently she has been exploring different audiences through publishing in popular media. Sommers is the lead author on Hacker handbooks, all published by Bedford/St. Martin’s, and editor of Tiny Teaching Stories on Macmillan Learning’s Bits Blog.

Marcy Carbajal Van Horn has served as the ESL specialist for Hacker Handbooks. Formerly of Sante Fe College and St. Edward’s University, she has worked as a composition teacher and as an online writing lab coordinator to help a wide range of students improve their academic writing.