“We’ve used Castle Writing’s services for just over a year now. Both Jon and Kathryn are brilliant writers who can deliver good content, whilst also balancing our requirements for SEO keywords. They always research the subject matter and are spot on in terms of following the brief we provide them. They are an efficient team and consistently deliver on time. Great service all round.”

“We hired Jonathan and Kathryn on the recommendation of our SEO expert. Even though I am the author of 5 books, including 4 Amazon No. 1 best sellers, I recognize that writing to be found on the internet is a very specific task. Jonathan and Kathryn produced the articles for SEO on time and in excellent form.”