The two that are given away, and why
The sampler covers all twelve pillars and reproduces one of them in full. That is deliberate: nobody should have to pay to find out whether the writing is any good. The playbook is the piece the whole assessment grew out of.
The full 2026 Edition guides are the ZenDex client benefit, which is why they are not on this page. The chart room lists all twelve with the line that says why each pillar exists, whether or not your account has them.