This torrent contains books by author John Michael Greer which I managed to find in digital form.
There is a folder with the recommended companion books for "Learning Ritual Magic".
The "Paths of Wisdom" copy included there is a copy from the main folder.
Most of them are PDF files that preserve original format, except for these:
* Decline and Fall - epub
* The Art and Practice of Geomancy - captured from Scribd
* The Celtic Golden Dawn - epub
* The Element Encyclopedia of Secret Societied and Hidden Story - epub