I did one experiment with the free days. It was one day long, and I didn't tell (almost) anyone that it's going to happen. I just wanted to see how Amazon is promoting it without me. At the end of that day, 209 books were out there in people's iphones and kindles. I don't know if it's good or not, but next time I could compare and see.
Anyway, I hope you will get the free book on time, and share with your friends and whoever else might enjoy it. I will soon post a list of all the places I try to promote my book, so you can check them out and use them as well, if you find it good for you.
Thanks for reading
(This cover is the latest version, what do you say - is it better?)