Book excerpt: This is the second book in the BDSM Mastery series. While the first book oriented readers to play, parties, and scene protocols, this book addresses Dominant/submissive relationships. What, you might ask, are "BDSM Relationships?" These are "adventuresome" relationships. Relationships that are not exactly like vanilla relationships. BDSM relationships differ in two specific ways from your typical vanilla relationship: first, they usually involve a power-imbalanced structure (one person is clearly in charge and the other person is clearly following); second, the kind of sex that adventuresome folks practice is, well, not vanilla. I wrote this book to help you better to understand the power dynamics that get involved with what are called power-imbalanced relationships (usually referred to as Dominant/submissive or D/s relationships).