A Skeptic’s Guide to Islam raised nearly $10,000 in 2012, and as far as I can tell, no one knows if a word of it has ever been written. Its Amazon page lists the new publication date as December 7, 2017, but it also says “Currently unavailable. We don’t know when or if this item will be back in stock.” if you scroll down. With no proof of it ever being written and no communication from the creator, it’s probably time to ask for refunds. I’m not a backer of this project, but I am a backer of another long delayed project, but that creator has been in contact and shown proof. Makes a big difference.