Sorry I've not been here a lot, but been helping my mum round the house and garden, and then went down with a cold. Still have the cold, but much better now.
Anyway, do you have a theme running through all your books? I do. Mine is hope and second chances. I shall explain more.
With my Guardian Angels series, there is hope for the teen angels, Lizzie and Danny, for redemption by helping other teens on Earth from risking their lives and death, like they did. They give hope to the teens they help by showing them what they can do with their lives if they just try and not give in to boredom. I'm currently writing the fifth and final of the series, where Lizzie and Danny have their last mission to pass and graduate from the school. It doesn't all go to plan like they hoped.
In Geraldine's Gems adult romance series, Geraldine has gone to Heaven after dying and given the chance to redeem herself (she was not nice when alive) by first getting her ex love to be nice again, then going down to Earth to help her relatives get their lives and love back on track. As she is told, One good turn deserves another. So her relatives are given hope and second chance at love.
Then in my dark magical romance series 'Secrets of Singleton' some of the residents whom are single, are given the hope of romance by certain objects who have magical powers given by their descendants.
So there you have my theme of Hope and Second Chances.
I plan to put this theme in non-fiction soon, too. I plan to write and publish a series of short ebooks to help new authors with their writing. The first one is going to be full of writing exercises for all genres, the second one will be more exercises, but will use words and verbs that often get mixed up and confused eg practice/se. (One which I used to get confused with).
You can buy any of the above ebooks at http://www.amazon.co.uk/-/e/B0034P09WW