You should read the Power of Now. He does an excellent job explaining all of the concepts of consciousness.
Next, read this list of recommended books and videos:
Recommended Books and Videos on Consciousness ExpansionThen, read through these beginning articles:
Definitions What Is Awareness?Why Should I Do This?Who am I?Who Am I Not? I’m Lost! Help!Let’s Talk MeditationWhat Are Psychedelics? What is Manifesting: How to rewrite the code to your lifeWhat is Anxiety? Do I Need To Be Worrying All The Time?What is Letting Go? Am I In Flow Or Not?