A fundraiser is an event or campaign whose primary purpose is to raise money for a cause, charity or non-profit organization. Fundraisers often benefit charitable, non-profit, religious, or non-governmental organizations, though there are also fundraisers that benefit for-profit companies and individuals. One specific type of event is the ad book fundraiser, where those who wish to give funds to a the fundraising group do so through the sponsorship or statement within a book of advertisements.