A more thorough explanation:

Definition: Promoting prostitution is the act of recruiting a prostitute, finding a place of business for a prostitute, or soliciting customers for a prostitute. It is also the act of selling or distributing textual or visual material (such as magazines or videotapes) openly advertised to appeal to the recipient's sexual interest.

Examples:

• A person who hires someone to work as a prostitute and finds clients for them is promoting prostitution.
• A person who creates and sells pornographic magazines or videos is also promoting prostitution.

These examples illustrate how promoting prostitution involves facilitating or encouraging the act of prostitution, whether it is through finding clients or creating and distributing sexual material. It is considered a criminal offense in many jurisdictions.