I ordered the CD version - which turns out to only be playable in a computer. Even though it is probably interesting information, the voice is an unbearable computer sounding monotone that makes it impossible to listen to (if you have any sensitivity to sound) And you have to be willing to only sit at the computer to hear it. Watch out - don't get this version.

Groundbreaking in 1906 and still extremely thought provoking today - although the material is not new to me as I have seen so many new age pundits regurgitate it in one form or another - what is startling is to read it in the context of early last century. Luminous and superb!