This book was written by two female academics from Canada. The purpose of the book seems to be to condemn prostitution in the Philippines, rather than to objectively study it. The authors have not selected a random sample of prostitutes or their customers to interview. Neither have they interviewed any former prostitutes who married a customer and moved with him to his home country.
Far from being exploited or kidnapped, the sex workers in Angeles City compete for their jobs where they can make in a night more than they could earn in a month at a factory. They also have the opportunity to learn English and some of them are able to leave the Philippines with men who have fallen in love with them. Many of them enjoy a night of partying with a customer and ask him to hire them again.
The authors condemn men who hire these prostitutes and characterize these men as saying that they are not interested in women in their own countries, who would not be as young and attractive as the Filipinas in any event. If the women in the customers' home countries hold the same attitude as do the authors, it is evident why men who patronize the sex workers would not want to marry such women in their home countries.
On the other hand, the book states nothing about the bad habits of the sex workers, particularly theft from their customers' wallets and rooms.
Any educated man who had spent several weeks in Angeles City could write a much more accurate and informative book.
If you do want to read this book, the used copies on this site are great bargains. It's easy to understand why.