Violet Blue's Ultimate Guide provides frank and scientifically sound discussion on the subject of fellatio, however, it does not fully live up to its subtitle. This is a beginner guide at best, and Blue devotes too much time to the mechanics of hair and hygiene, health considerations, social considerations, gender issues, and not enough to technique and the experience. She devotes an entire chapter to "Deep Throat," failing to mention that this is largely a fantasy phenomenon and not an end-all ultimate technique. It would be terrible for a novice to read this book and spend hours practicing the deep throat on various objects, thinking that it is the ultimate sex goal.
Blue should be commended for speaking frankly about anal play, role playing, and many of the bonus add-ons fellatio. The chapters are interspersed with original erotic tales from Alison Tyler, which waver between hitting the mark and detracting from the flow of the book.
One of my chief complaints about Blue's work is that she speaks openly and freely about technique and the contact between body parts, and then at the end of discussion, tosses off that all of this should be done with condoms, finger caps, and dental dams. She throws in safe sex as an afterthought, not as an integral part of her text. She preaches about safe sex, but she does not incorporate it into her discussions of technique.
Pick this book up along with some other guides, such as the outstanding Guide to Getting It On, and compare the discussions. Violet Blue's book is one of the better guides, but don't read it without picking up some of the other 5-star sex guides available.
supersex taught you the basics, now superhotsex picks up the pace and takes things a little further, with more advanced techniques, risqué topics, and even sexier pictures to send you into sensory overdrive! 
