Advertising is the most important element of the targeted influence oncustomers. Nevertheless, thisis not free from legal restrictions. Companies must comply with legal provisions when placing their advertisements. For example, advertising should exercise no compulsion on the customers nor exploit their ignorance. In addition, bait advertising and false statements are prohibited. The cases described above all represent unfair advertising, which can impair the economic rights of the company's competitors. The Law against Unfair Competition (UWG) entitles the competitors to proceed by issuing warnings to respective companies. Subsequently a legal injunction will be also possible. It is advisable to consult a lawyer practicing in the area of advertising law, who will help toavoid litigation. To enforce their claims, the concerned parties should also seek for advice of a qualified lawyer.