I read The Four Agreements, The Mastery of Love, and The Fifth Agreement: A Practical Guide to Self-Mastery. The Toltec Wisdom introduction sounds like every claim I’ve ever seen to ancient knowledge, lost but now restored. But toss that out, and everything else is golden. The main weakness of the followup books is the rehash needed to ensure each book can stand alone. I’d rather have a chapter called “catch me up” at the front, so I could easily skip it. But the new material is worth getting at, and these aren’t lengthy tomes. Glancing at the agreements makes them sound superficial, until you dig into what impeccability really is, or how things get taken personally at an intrinsically emotional level, or what assumptions are really at play in the schema we bring to the world. I haven’t found a more practical emotional guide that wasn’t pure fiction, though Steven Pressfield’s “Do the Work” is pretty stellar.