Mark O'Neill

Spy thriller author, creative entrepreneur, daydreamer

Mark O'Neill
Bookworks Book of the week
Readers Choice Awards 2018
amazon bestseller logo

Welcome to my website. If you’re looking for everything to do with Mark O’Neill, then you’ve come to the right place.

I’ve been writing for the past forty years in some form or another. However, in 2017, I stumbled upon a writing and publishing course, and decided to start making the book writing my main source of income.

I am proud of all my books and the characters that inhabit them. I hope you come to enjoy them too.

My books are currently only on Amazon, but I intend to bring the paperbacks and hardbacks to other retailers in 2024. The books are also currently being developed as screenplays.

For the past 20 years, I have also been a tech journalist and editor, including being the managing editor of five tech websites, and an advisor to businesses wanting to improve their online presence. For several years, I was also an English teacher. You can read more about me on my About page.

If you enjoy my work, please consider sending something from my Amazon wishlist or buy me a pizza.

Be taken directly to your Amazon store to buy the books!


Mark O'Neill
formatting an ebook

Formatting an eBook Can Make or Break It

When formatting an eBook for online publishing, there are a few key considerations to keep in mind. These include the file format, the layout and design, and the overall quality of the content.

female soldier

A Russian Sophie Decker? It may well happen

As I write my books, I am always on the lookout for possible ways to spin off the series and create more new series. I did it by giving the Scorpion from The Renegade Spy his own spin-off series. Now, my latest Department 89 book has given me the idea

facebook page social media

Every author should have a Facebook page

For an author, a Facebook page is a powerful tool for promoting your books and other work. Facebook has been around for almost two decades, and has transformed from just a social media platform for connecting with friends and family to a powerful promotion tool.

male soldier

The first chapter of Ground Zero – FREE!

Below is the first chapter of the new Department 89 novel, Ground Zero. The book will be out on June 1st. To encourage you to pre-order, I am giving you the first chapter for free!

first draft of book

Beginning the first draft of your book

Understandably, starting to write is the part that strikes absolute heart-pounding terror and fear into writers, leading to what is commonly perceived as writer’s block. Getting started is always the problem .

digital canvas

Choosing your digital canvas for writing your book

In the past few self-publishing articles, we’ve discussed fiction versus non-fiction, figuring out your fiction niche, and how nothing is original anymore. At this stage, you’ve hopefully got your niche fiction idea and you’re ready to begin writing. But wait – begin writing on what? What platform will you use?

original idea for a book

There’s no such thing as an original idea for a book

In the last couple of articles, we have gone over which genre you should establish yourself in. Fiction or non-fiction? Assuming you’ve decided which one you’re going for, we’ll move onto the next stage now which is finding an original idea for a book.

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