This 148 page book was not to my liking. It was too abbreviated to give any substantial insite. More like just a tease of information. Plus with the print date of 1992, it lacks so much updated technology & information gained through the 90's.
I will say it did include a nice bit on the reliability of condoms, stating Trojan-enz has 2% failure rate in regard to breakage. At that time, it was also noted that Gold Circle Coin was one of the strongest condoms. These above results were from Consumer Reports Labs from 1987. I will add that in the early 90's, I had sent for a report, from an accredited testing site for sexual paraphenlia, about condom reliability & that testing site acknowledged & confered Gold Circle Coin as one of the most reliable in strength & protection from sexually transmitted diseases.
As a general overview it did provide a quip about just about everything however, for real researched information and answers you will have to refer to other texts or books.