Halo and Salutations!
There is a site called http://www.free-energy-info.com/PJKbook.pdf.
The PJKbook.pdf may be needed to be deleted if it doesn't connect properly.
It can then be downloaded via a link on the site.
Excellent stuff from simple to the not so simple.
Peruse at your leisure and I hope to hear of any thoughts it evokes.
Enjoy and keep smily folks. ALR.