The audience for this book will quickly discover that this woman knows how to write and she knows her subject backwards and forwards, and inside and out. This is a more advanced look at D&S and S&M than the majority of those on the market. While most of the techniques described in minute detail in this guidebook are far beyond this reader's personal experience, there is always something useful for anyone to learn from reading it. It does answer some of the nagging questions that everyone curious about the scene seeks to know--even if they aren't going to personally try those most advanced experiments in extreme sensation, domination, fisting, humiliation, slave training, water sports or exhibition and group party games. Ditto for actually trying pony training, caning, using the bullwhip and violet wands.This book purports to be intended for women to turn their consenting monogamous adult male partners into happy, sexually satisfied silly putty. The boast is justified. As a male, this reviewer doubts that many men could describe the "in's and out's" of the psychology of humiliation, mind games or other detailed techniques for driving males crazy with desire half as well as this former dominatrix-turned-author. There is no question from the material covered in the book that this woman has vast experience with her subject matter and she doesn't hesitate to share her knowledge in excruciating detail after detail. Even the readers of these games will know instinctively that what she is describing works--sometimes it even begets results just from reading her thoughts as she transfers them to the printed page.Because this book is much more advanced than most on the subject, a lot of time is devoted to playing safely. Two different anatomy charts of the male body are included with the danger zones for each activity clearly marked. It's like a scene out of the old movie classic "Spartacus" where the ex-gladiator drill sergeant is using Kirk Douglas's body to paint the various kill and injury areas to show the other would-be gladiators.One doesn't have to read far to understand how fragile the human body really is. It's obvious why Varrin goes to the trouble of pointing out the danger points for some of her extreme S&M games. For instance she reminds the reader never to use the violet wand above the waist and to know if your partner has any kind of heart trouble or a pace maker. Electricity is always dangerous even in mild doses.Like any serious writer or practitioner of these D&S and S&M scenes, communication, knowledgeable consent, detailed planning, safe sex, and more communication even during and after the scene is completed are indispensable. The reason for the increasing popularity of this kind of play is simple: done correctly it can make a sexual tryst last for hours or even all night and into the next day. Where else can a loving couple have seemingly endless sex? And because it is so satisfying, great care must be taken to protect one's playmate from any kind of injury or real, unwanted harm including utter exhaustion.This book will definitely provide enlightening reading for interested would-be participants as well as the people who are simply curious about the practices described. It's one of the better tomes on the complex subject. And while it's primarily intended as a guide for women to use on their willing, kinky male lovers or husbands, most of the techniques can easily be adapted for any combination of males and females. Even games for "hen parties" are suggested. How many male submissives have lust-filled dreams of being the focal point of a house or dungeon party comprised entirely, or mostly, of skilled dominatrixes with him as the door prize or party favor for all of them to sample?