Sarina Cornthwaite

Line Editor and Proofreader

  About Me

Growing up as a bibliophile, I was always happiest with a book in my hands, leafing through pages as authors took me on whirlwind adventures. Even while pursuing a career in education, I knew that I wanted to help authors create enthralling adventures like the ones I grew up with.

Since 2016, I've been editing for clients across the globe, guiding them towards their best writing without losing their voice. 

My experience spans multiple genres in both fiction and nonfiction, with the majority of my time being spent editing business and lifestyle articles and fantasy novels.

When I'm not editing, I can be found reading on my couch with a steaming cup of coffee in hand.

Services I offer

From $0.025 per word
From $0.018 per word
Beta Reading
From $0.0025 per word
I'm happy to provide a price quote and complimentary 500-word sample edit for projects over 10,000 words


"I hired Sarina to help with 3 short essays that needed to be cleaned up. I am a super amateur writer and was a little self-conscious to engage a professional to help. I contacted a few editors and Sarina was by far the most responsive and professional. Her turn around time was exceptional and her tips and suggestions are on my mind as I continue to write. I can't recommend her enough and will continue to refer her and leverage her expertise in the future. Thanks Sarina!

Matthew M

"Working with Sarina gives me peace of mind. I struggle with spelling mistakes and generally refining my wordy content takes me so much time. As a designer handling mass amounts of client content as well as my own, I work with Sarina to get it done right! No matter how much time I spend on a piece, Sarina can always make it better. Her suggestions keep the voice and personality of the content but make it flow and read easy. I have entrusted her with my and my clients' content on a consistent basis for over a year now and she is an incredible asset to my business! She takes the proofing pain away!"

Monica O

"Sarina has far and away exceeded my expectations. Her work was incredible and her ability to catch repetition and also offer clarity to the overall theme of the book was remarkable. The text is no longer riddled with errors and reads concisely and easily. She also communicates so well and delivered faster than I expected. I will definitely come to her for any and all of my editing needs in the future. Thank you for helping me make my first book special!"

Ridwan H

"Sarina was quick, communicated her action plan early on, and then executed it flawlessly ahead of schedule. She polished up my bio exactly how I'd envisioned. I hope to work with her again in the near future."

Roxanne B

"Sarina was awesome to work with. She is fast and accurate in her editing. Every job I sent her way she acknowledged that she received the files and provided me with an estimate of when the job would be complete which was usually the next day. I really enjoyed working with her."

Steve I

"Great attention to detail, prompt and efficient. Finding that balance between good technical grammar and eloquent communication is difficult, and I believe that she nailed it."

Jeff S

More Testimonials

"Sarina is very easy to work with. She is fast, effective and very quick in her response times. I appreciate your hard work Sarina, particularly with the limited timeframes for the editing process. Looking forward to working together again as soon as we have another project."

Iske C

"Sarina was a pleasure to work with and very professional. I hired Sarina to edit my first story, a 153,000 word sci-fi/fantasy novel. She tackled this project without batting an eye and has worked hard to correct my horrible grammar. I am very pleased that I hired her and I suggest you do the same!

Sean W

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