Go to Amazon https://www.amazon.co.uk/Lily-Poole-Jack-ODonnell/dp/1783522356 and follow the instructions for writing a reiew. It costs nothing but your time. 

Or Ray is very Smart. https://www.goodreads.com/user/show/15449749-ray-smart. Hit Goodreads and leave a review. 

Twitter and Facebook shares all help. Imagine the population of Scotland were all at it and had a book to sell. That's how it is. More than that number publish on Amazon every year. Finding a book or finding an unknown author is a black hole. 

There are countless other sites where you can help spread the word. Help me get reads. Be Smart like Ray.