What is the official material for CAIA Level 2?

Based on the CAIA website, there is a handful of downloadable books and:

  • Digital Platform e-curriculum
  • CAIA Level II Core Book

First: Are both above official curriculum for CAIA (meaning it’s not 3rd party)?
Second: If they are both official, are both of them required (kinda f’d up to have us purchase both)

Thank you all in advance.

For their curriculum materiel you can either access online or pay extra for the printed book, but they’re both the same materiel.