This is a book about relationships. Adventuresome relationships. Relationships that are not exactly like vanilla relationships (traditional relationships as practiced by the average couple you'd meet at a baseball game). BDSM relationships differ from vanilla relationships in two specific ways: First, they involve a power-imbalanced structure (one person is clearly in charge, the other person is clearly following); and second, the kind of sex that adventuresome folks practe is, well, not vanilla.
This book speaks to those who are starting out in BDSM, or are involved with someone in a BDSM-based relationship.
Reading this book will save each of you a lot of heartache, frustration, and anger.