Is leaving flyers soliciting an effective way to promote a business or event?

Leaving flyers to promote a business or event can be effective, but its success depends on the target audience and the location where the flyers are distributed. It can be a cost-effective way to reach a local audience, but may not be as effective for reaching a wider or more diverse audience. It is important to consider the effectiveness of this method based on the specific goals and target market of the business or event.