Sean Dennis

Sean Dennis – Editor

I help underheard voices get their stories, ideas, and research ready for publication via developmental editing and author coaching.


Since there are many strongly credentialed editors on Reedsy, I want you to know that I appreciate your consideration of my skills and experience. When you select me as your developmental editor or coach, you'll benefit from my 25-plus years of experience as an editor and creator across multiple industries and diverse content areas.

Since March 2023, I am working full-time as a technical editor for a US government contractor, which limits my availability somewhat. I also serve as a volunteer proofreader for the Journal of Caribbean Ornithology. In prior roles, I have been a nonfiction editor for Propertius Press, the associate editor of JazzTimes and BirdWatching magazines, a copy editor for Pragmatic Press, a quality assurance copy editor for Fire Engine Red, a developmental editor for Manning Publications, a senior technical writer for Rockwell Collins' satellite communications division, and a program development specialist and e-learning developer for the National Oceanic and Atmospheric Administration (NOAA).

If you are thinking about writing a book but haven't started yet, now is the time to connect with me.

Here's what I will assist you with:

√ Discover and understand the audience(s): Who are you talking to? Do you know their characteristics/likes/dislikes/needs/wants?

√ Develop the content outline: What do you want your audiences to know?

√ Apply instructional design and story-development strategies: How are you going to tell your stories and convey your knowledge?

√ Review and fine-tune your content: Did you include too much information or provide unnecessary details? Did you forget something? Are you speaking in the correct voice for your audiences?

√ And ultimately, ask and answer up front all those pesky yet crucial "Why should the reader care?" questions.

The outcome is that you'll work more efficiently and with better focus, have more fun writing, and ultimately create a better final product. Your audience will be pleased by your clearly stated ideas and thesis—logically organized and presented—and the effortless flow to a strong conclusion.

If you have already written a draft manuscript, I will provide suggestions for improvement while reviewing your content as both a beta reader and a developmental editor. I will also let you know when I see awesomeness.

My focus is helping people to create a kinder, gentler, more just, and more sustainable world through their stories, analyses, ideas, and lessons learned. I will be a strong advocate, a deep thinker, an honest beta reader, and sometimes a tough critic—because I want you to create your best work.

Subject areas:

√ Pan-African studies (all areas)

√ Social justice, environmental justice

√ Musicology (especially jazz)

√ Natural history (especially birds and birding)

√ Alternative medicine (herbal medicine, Eastern modalities, etc.)

√ Computer science (only if really compelling)

Book(s) I am reading currently: A Naturalist in Costa Rica by Alexander Skutch; The Doors of Perception by Aldous Huxley.

Note: I am comfortable working in MS Word, Google Docs, Adobe Acrobat, and Markdown/XML.

Thanks for stopping by. I look forward to working with you. Please stay healthy and safe.

Computers & Internet Music Nature Sociology
English (US)
Works with
  • Effective Practices Award (Sloan Consortium)
  • How to Design Effective Training Programs (The Training Clinic)
  • Facilitating with Ease & Advanced Facilitation Skills (Participative Dynamics)
  • Project Management Basics for Success (American Management Association)
  • Art and Science of Effective Web Design (Human Factors International)

Work experience

Schatz Strategy Group

Mar, 2023 — Present

Technical editing of engineering documents, conference papers, reports, etc.

Propertius Press

May, 2020 — Nov, 2022 (over 2 years)

Developmental and copy editing of nonfiction manuscripts.

Madavor Media

Jan, 2017 — Aug, 2017 (7 months)

I edited feature articles, bios, reviews, and other content for the print and online versions of both magazines. I also wrote some news summaries, obituaries (JazzTimes), and other content as assigned.

Manning Publications

Aug, 2013 — Aug, 2014 (about 1 year)

I managed and coached authors through the process of writing books, from initial outlines to final drafts.

DataPath/Rockwell Collins

Jul, 2007 — May, 2012 (almost 5 years)

I wrote, edited, and curated technical manuals, learning collateral, and developer documentation for a complex satellite monitor-and-control software system.


Jan, 2000 — Present

Multiple clients and projects over the last two decades.


ReasonML is a new, type-safe, functional language that compiles to efficient, readable JavaScript. ReasonML interoperates with existing JavaScript libraries and works especially well with React, one of the most popular front-end frameworks. Learn how to take a... read more
Elm brings the safety and stability of functional programing to front-end development, making it one of the most popular new languages. Elm's functional nature and static typing means that run-time errors are nearly impossible, and it compiles to JavaScript fo... read more
Gain insights and depth of rationale into Scrum from many highly respected world authorities, including one of its founders, who lead you through the deep foundations of Scrum's structure and practice. Enhance and customize your Scrum practice with ninety-four... read more
Summary Learn System Center Configuration Manager in a Month of Lunches is a super-practical guide to Microsoft System Center Configuration Manager. In this book, you'll cut to the chase and learn the administrative procedures and techniques that will keep you... read more
SummaryBarcodes with iOS is the first and only book that comprehensively addresses barcode technology for the iOS developer. It offers an introduction to commonly used formats, such as ISBN and UPC codes, and provides real-world examples that teach you how to ... read more
Summary Learn Git in a Month of Lunches introduces the discipline of source code control using Git. Whether you're a newbie or a busy pro moving your source control to Git, you'll appreciate how this book concentrates on the components of Git you'll use every ... read more
jQuery in Action

Bear Bibeault

SummaryjQuery in Action, Third Edition, is a fast-paced and complete guide to jQuery, focused on the tasks you'll face in nearly any web dev project. Written for readers with minimal JavaScript experience, this revised edition adds new examples and exercises, ... read more
Meteor in Action

Stephan Hochhaus

SummaryMeteor in Action teaches you full-stack web development using the Meteor platform. It starts with an overview of a Meteor application, revealing the unique nature of Meteor's end-to-end application model. Then you'll dive into the Blaze templating engin... read more
jQuery UI in Action

T. J. VanToll

SummaryjQuery UI in Action is a practical guide to using and customizing jQuery UI library components to build rich, user-friendly web applications. By working through numerous engaging examples, you'll move quickly from placing a datepicker on the page to bui... read more

Sean has 5 reviews





Frank L.

Frank L.

Nov, 2021

It is very pleasant to work with Sean. He is an excellent communicator and the review he developed for my manuscript was of a very high standard. I am considering to continue working with Sean to finalize my third book. I highly recommend Sean to anyone who seeks an expert review of his / her writings.
Sean D.
Frank is a keen observer of culture, technology, and trends, and his writing style is fluid and friendly—like having a good conversation with a friend. I have greatly enjoyed assisting Frank with h...
Read more
Gregory M.

Gregory M.

Aug, 2021

At first when I met Sean, I was a little apprehensive because this was all new to me, as a first time author. However after our first face to face (on line) he made me feel comfortable enough to relax and just go with my thoughts and feelings. By the third call I felt as if I had met someone who genuinely was looking out for my best interest. He explained how he was going to support and help ...
Read more
Sean D.
I was delighted that Greg chose me to provide editing services for his manuscript. His stories are important and need to be heard. The frosting on the cake is that Greg (and his wife) are genuinely...
Read more
Adam R.

Adam R.

Nov, 2020

Sean Dennis is an insightful, experienced and very capable writing partner, providing excellent guidance for both structural and substantive editing. Plus, he is a pleasure to work with. I can recommend him for any project that you may want to elevate from good to great.
Sean D.
Working with Adam has been a pleasure. He is congenial and engaging, a strong writer, and truly a subject matter expert in the fields of strategic communications and social media advocacy. I look f...
Read more
Heidi B.

Heidi B.

Dec, 2018

Sean was excellent in all aspects! He conducted an editorial assessment of my manuscript. He's prompt, communicates effectively, and shared excellent and insightful comments (his critiques were gently-delivered!) I highly recommend Sean, and plan to work with him again.
Sean D.
Heidi is a strong writer and an expert in her field. I've enjoyed working with her to fine-tune her manuscript, and I look forward to collaborating again soon.
Serie M.

Serie M.

Oct, 2018

Sean D.
It has been both an honor and pleasure to work with Serie and edit his manuscript. I look forward to future collaborations.

Professionals similar to Sean

Get a range of offers by requesting quotes from multiple professionals.

Chris Murray

Chris M.

17+ yrs book editing. Leadership, self-help, environment, marketing, social issues, business. A passion for the compelling narrative.

Philadelphia, PA, USA

99% reply rate

View profile
Kera Bolonik

Kera B.

Copy editor + editor in books + magazines (HarperCollins, Vintage, New York Magazine) helping authors fulfill their vision for 30+ years.

New York, NY, USA

100% reply rate

View profile
Skip Card

Skip C.

Experienced reporter and copy editor with wide-ranging professional experience available to help authors repair broken sentences.

New York City, NY, USA

100% reply rate

View profile