April Osborn

April Osborn – Editor

Former Big Five Editor with 15+ Years’ Experience — I look forward to providing thoughtful feedback and direction on your next project!

Overview

As a lifelong book nerd, I spent much of my childhood reading with a flashlight—or listening to books on tape—late into the night, so it was only natural to find a career that let me continue the habit. I moved from California to New York in 2009 for NYU’s MS in Publishing course, interning at Simon & Schuster, Bloomsbury, and Perseus during the day and taking classes at night. After graduation, I landed at Macmillan, where I cut my teeth editing true crime, historical mysteries, thrillers, women’s fiction, memoir, and the occasional narrative travel guide or cookbook. In 2018, I moved to HarperCollins, where I built an eclectic list that spanned genres from upmarket speculative fiction and family dramas to nonfiction adventure narratives before leaving in summer 2026.

After a decade and a half working at big five publishers, I have a keen eye for what agents and editors look for in a query letter, and I love helping authors figure out how their work fits into the publishing landscape. In an Editorial Assessment, I can work with you to determine the strengths or your story and how best to leverage them. In a Query Critique, I’ll help to distill your summary to the most essential plot points, adding voice, energy, and authority to your pitch, while making it eye-catching and compelling to agents and editors. In Book Coaching sessions, we can discuss where you are with your project, the challenges you’re facing, and the best ways to move forward to achieve your writing goals. I look forward to working with you to make your work shine!

Services
Non-Fiction
Biographies & Memoirs True Crime
Fiction
Contemporary Fiction Mystery & Crime Romantic Comedy Time Travel
Languages
English (US)
Certifications
  • Master of Science in Publishing, New York University

Work experience

HarperCollins

Sep, 2018 — Jun, 2026 (almost 8 years)
I acquired and edited upmarket fiction and nonfiction for adults, focusing on books with layered storytelling, irresistible characters, and propulsive plots.

JP Morgan Chase

Jun, 2026 — Present

Macmillan

Sep, 2011 — Aug, 2018 (almost 7 years)
I worked my way up from Editorial Assistant to Senior Associate Editor at St. Martin’s Press, editing books that included true crime, mysteries, thrillers, women’s fiction, and memoir.

Portfolio

Developmental Editing
Editorial Assessment
Picture Perfect: The Jodi Arias Story

Hogan, Shanna

St. Martins Press-3PL

Developmental Editing
Developmental Editing
Developmental Editing
Developmental Editing
Summer That Melted Everything

McDaniel, Tiffany

Griffin

Developmental Editing
Developmental Editing
Developmental Editing
Developmental Editing
Amp'd: A Novel

Pisani, Ken

St. Martin's Press

Developmental Editing
Developmental Editing
Developmental Editing
Developmental Editing
Developmental Editing
Developmental Editing
Developmental Editing
That's Not How It Happened

Thomas, Craig

Hanover Square Press

Developmental Editing

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