Cassidy Sachs

Cassidy Sachs – Editor

An editor at a Big 5 publisher with experience editing NYT bestsellers, specializing in adult commercial fiction and narrative nonfiction.


Hi! I'm an editor with over seven years industry experience. I specialize in adult commercial fiction, particularly in the genres of contemporary, literary, romantic comedy, and women's fiction, as well as adult narrative nonfiction across a broad array of genres including history, politics, memoir and journalism.

I view editing as an exercise in empathy, and love working closely with authors to shape the best possible version of their book, to make sure the story they want to tell, the message they hope to deliver, and the empowering perspective they want to share, come through clearly.

I am available to provide structural editorial notes to help at the development stage, a closer line-edit for projects that are further along, and specialize in long form editorial letters that assess your project's strengths and weaknesses and help you plan for the best path forward. I also provide proofreading services for manuscript that are just in need of a final polish.

I am a thorough and thoughtful editor, eager to bring my expertise to your work!

Biographies & Memoirs History Political Science & Current Affairs
Contemporary Fiction Literary Fiction Romantic Comedy
English (US)

Work experience

Penguin Random House

May, 2017 — Present

Cassidy has 19 reviews





Anthony M.

Anthony M.

Mar, 2023

Cassidy was a great help in reviewing my work. She brought exactly the feedback I needed. She was generous with her time and her suggestions were very helpful. I would highly recommend her.
grant R.

grant R.

Jan, 2023

I've used her several times already and she never disappoints.
Mark L.

Mark L.

Nov, 2022

I was brand new to the book writing and all that goes with getting it all the way done. I have learned a lot of new things and also experienced an emotional wave of creation in the proofreading. Wow is all I can say about that. Cassidy Sachs was wonderful, and I can only imagine the depth of her talents. Thank you, Cassidy for that trip around your world. All the Best, Mark Loughlin


Oct, 2022

Very thoughtful and helpful editorial letter. I can tell Cassidy spent the time to read my draft and gave me meaningful feedback to improve upon my story and writing!
Dayna G.

Dayna G.

Jul, 2022

I had a great experience working with Cassidy. Her feedback was truly invaluable and helped me see my manuscript from that very much needed alternative perspective. After working with her you'll receive thorough and thoughtful edits that will help pivot your writing to a more professional and structured standard. I certainly plan on working with her again and would recommend her to anyone seeki...
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