The Living Force
The best start is in Casswiki.Can someone explain to me the Third Force Principle or direct me to the literature where I may find explanation?
Open in the left column the lemma Cassiopaean Experiment and click on Law of Three (starts on page 514). There you will find six pages of explanation including links to relevant other terms and subjects. Best to bookmark and/or download the Casswiki for further reference to other terms and subjects in the future.
Another way of approaching it is doing a forum wide search for the term duality and/or non-duality and read whatever you find appealing. Usually, that leads you to other referenced threads as well.
As for speed reading, I found only one older (2014) thread about that here but I'm not certain of whether its info is still accurate. The simplest solution would be to just google the term and see what's on offer.Maybe someone also knows where I can get a free course in speed reading online lol.
Happy hunting !