welcome to the wwi forum - pls.follow the rules of the eBooks section. Check if a thread exists already by using the search button !
It is organized by the name of the author. We have a Earl Hadady thread since 2014:
Thanks for your help. I wasn't aware the topic you point to can be treated as an Earl Hadady thread, all I can see is a request for a single book that had never been answered. I did find it using the search function.
I am not sure if a digital version of this book exists, was just hoping someone might have a scanned version.