Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Prostitution is the provision of sexual services to another person in return for payment, usually in terms of money. A person who receives payment for sexual services is called a prostitute. Prostitution is one of the several branches of the sex industry, which includes sex shops, pornography and strip clubs, and is often referred to as the world's oldest profession. The legal status of prostitution varies among countries, states or jurisdictions where it can be permissible but unregulated, a punishable crime or a regulated profession. The annual revenue generated from the global prostitution industry is estimated to be over $100 billion...