Advertising and publicity are a means of marketing a product. Advertising is a means of creating awareness for a product.
Publicity is a free activity done to create awareness, while an advertisement is a paid promotion to create awareness. Advertisement includes promotion mix, while publicity includes public relations. Advertisement is controlled by the company, while publicity is controlled by a third party, which is normally the media.
Advertisement target prospective buyers of their product, while publicity just targets the public at large. Advertisement is used to build brand images, increase the sales volume and rums for a period of time, while Publicity is featured once, it is used to create goodwill and develop trust and bring out the negative and positive aspects of a product.
Some people may assume that advertising is known to advertise what the product or the service of the company is so that it will become more appealing to different people who are being targeted by the company. Advertising is normally done for commercial purposes.
Publicity is known to be something that can be done so that there are more people who will be reached or so that there will be hype towards the products or the services that are being used.
There are times when publicity will be done by another company that is not related to the company at all. Advertising is known to be a paid form of giving ideas and making sure that the products and services will be properly promoted.