Everyone knows that Amazon is by far the biggest book seller in all formats, so of course the DS Pete Gayle books are on there, in both e-book and paperback formats. But I am aware that some people don’t like e-books and some don’t like Amazon. So, for that reason, the books are also available on a variety of other platforms as well. They are all on Apple Books, Barnes and Noble, Google Play, Kobo and Lulu as e-books. The first three of the series are also available as paperbacks wherever Harper Collins sell their products, including high-street retailers like Waterstones. Book 4 onwards are all on Lulu.com as paperbacks in the UK only and now on Amazon.com as well as Google Play as audio books. Books 4 to 13 are on Barnes and Noble in paperback format for international sale but, for now at least, they won’t allow me the ISBN codes for the rest of the series.