A while ago, a fellow redditor shared a link to some eBook about how to sexually stimulate a female, although I have not finished reading it, I think it was a well written material. Just now I was trying to refresh some of the information learned from that eBook, but apparently it seems that I accidentally deleted the file containing it.

I would appreciate if you guys would share some documents, or eBooks related to the subject since I happen to not recall neither the title, nor the writer.