Hi AK.
I am glad you liked it and hope its of some use to you.
Like most of the tutorials posted here we make them ourselves in our workshop with our own camera. So there is no book that they come from.
It could be nice to start rounding these tutorials up and putting them in a digibook or something. Or make a list of things that tutorials could be made of.
There are some gems among these tutorials here that would deserve a book