Professional Services

Looking for an experienced novel and short story editor?

I offer a few different levels of beta reading, line editing, and developmental editing to fit any budget. Please see Editing Page and Beta Reading Page for individual service information. 

What qualifies me to be your line editor/developmental editor/beta reader? I have published a completed trilogy and am the driving force behind the Amazon bestselling charity anthologies in the "Autumn Nights" series. I have book coached, beta-read, and provided in-depth character and storyline feedback for many projects across multiple genres. I also hold a master's degree in a written and verbal language and communication-based program (Speech-Language Pathology) and have a double bachelor's degree in psychology and theater. Throughout 2020 and 2021, I have completed several courses on editing in the MLA style, dialogue mechanics and punctuation, as well as structural editing for fantasy, general fiction, and romance.

I listen well and promise to help you create your book with kind and honest feedback that preserves your writing voice. 

All services include a non-disclosure agreement (NDA) upon request.


"Cass Kim beta read both the Renegade and Echoes, the second and third books of my Ten Sigma Series. She's wonderful to work with, with a keen mind for characters, relationships, and plot. She provided excellent feedback on several places where I could improve the books, via scene level and character action/internalization comments. I wholeheartedly recommend her as a beta reader."  - A. W. Wang, author of the Ten Sigma series

"I hired Cass Kim for beta services and her notes were so spot on that I hired her a second time and will be doing so again for my future projects. Cass not only returned my work in a timely fashion, but she did an exemplary job of respecting my writing style while fleshing out the subtle tweaks I needed to improve my piece to what it deserved to be. As a writer, I was too close to the material which prevented me from seeing what changes I needed to make to improve the piece to what it needed to be. Cass could see them. Her beta services are helping me to become a stronger writer."   -   LT Ward, short story author and querying novelist

"Cass Kim did not disappoint. She is AMAZING at her job, and I feel so lucky I found her early. We started with a beta reading, and then when I finally finished my book, the edits! She just saved my book from a disaster. She’s great both as a developmental and a line editor. She has impressive writing skills, has a keen eye for detail, is on time, and explains her edits/suggestions accurately. She added clarity and emotions to my story and communicates with me as needed! I truly appreciate her edits and her knowledge in developing characters and plots. Hire her!" - Samantha Jana Won, YA Author

"I had the distinct pleasure of working with Ms. Kim on the wildly successful Autumn Nights anthology. Her keen vision and exceptional attention to detail were instrumental in making that project the success that it was. I believe she is a strong and uniquely talented writer who will bring that same vision to any and all endeavors. I look forward to hearing about the successes of her future clients, as I am sure they will be many."      -    Martin Shannon, author of the Weird Florida series, an Amazon multi #1 Science Fiction and Fantasy Short Read winner. 

"Working with Cass is always a pure pleasure. She has a keen eye for plotting and narrative flow, along with creating strong, memorable characters that linger long after a story ends. She really handles feedback effortlessly - providing balanced critique that's helpful, insightful and confidence building."    -    Eve Marie Power. 

"Cass Kim is an absolute delight to work with and a true professional.  I had the pleasure of working with her on the Autumn Nights anthology, and she was not only a skilled beta reader and editor, but she also excelled at keeping a dozen other writers on task.  I’d be thrilled to work with her again."     -    Matthew Cesca, Author 

"Cass Kim does a wonderful job of providing valuable and helpful feedback in a positive and constructive fashion that helps bring the very best of your work out. I would highly recommend her to help support your writing goals."    -     KA Miltimore, Author 

"Cass was always available to discuss the project. She responded quickly and clarified any questions she had that were vital to the success of the project. She completed the project in a timely manner and happily edited any changes that were requested quickly and efficiently. I highly recommend Cass. She took on a difficult project that required time management, adaptability, and great writing skills. The product she delivered was high quality and we were able to implement it with our overall business plan right away."    -    Upwork Client

"Hands down the best writer I have worked with. Extremely precise, quick learner and motivated to complete the tasks at the deadline. Extremely high value for money and extremely high level of writing. Couldn't recommend enough."   -  Upwork Client

"Cass was absolutely outstanding in every way, and is undeniably one of the best writers I've ever had the pleasure of working with. I would hire her again in a heartbeat! Well done!"    -     Upwork Client

I provide all invoices for direct contracts through PayPal Business. 

Because I am often booked out 3-6 months in advance, I require a non-refundable $25.00 deposit to hold a specific date/editing slot. This $25.00 deposit will be applied to your total payment at the time of full billing for services (at the time of initial manuscript exchange). All prices are in USD.