This series of briefs is for those who are fairly new to Integral Theory. All pieces are important but take particulary note of Theory 3 - Kosmic Address and Myth of the Given.
Quotes are from Ken Wilber's draft for Volume 2 of the Kosmic Trilogly and other earlier works - see collected Volumes 1-8.
Theory 1: What does it mean to operate in an AQAL framework
Theory 2: Wilber 5
Theory 3: Kosmic Address and Myth of the given
Theory 4: Useful terms in understanding AQAL
Theory 5: The shadow in development
Annex 1: Integral Methodological Pluralism (IMP)
Annex 2: AQAL Key terms
Annex 3: A More Integral Map
Attachment I: What is The Address of an Object in the Kosmos?
Attachment II: The Myth of the Given Lives On….
After studying these go to the source and read more.