"The three spy novels combine intrigue, action and distinctly British sardonic humour."
All three novels can be downloaded for £1.99 each, Standpoint is also available in paperback and his later books will follow suit next year.
Thompson believes that the novels can be read as a standalone piece or sequentially and work has already begun on his following fourth and fifth books
"As long as you can keep writing, anything is possible", said Derek.
"Persistence can pay off in the end."
Total book sales have already exceeded 10,000 copies.