I could probably have done this a lot cheaper, but I was determined to make the Lenticular books equal in quality to anything a major publishing house could produce and there was also a degree of experimentation in using the various promotional tools on offer to indie authors, some of which proved to be worth it while others fell short of their promise.

Also as a three book series my financial outlay in promoting the first book – Traitor’s Run – took into account the fact that successful sale...