Some new products can be successfully publicized when launched with a media tour. On a media tour a company spokesperson travels to key cities to introduce a new product by being booked on TV and radio talk shows and conducting interviews with print and Internet reporters or influencers (e.g., bloggers). The spokesperson can be a company employee or someone hired by the company, perhaps a celebrity or "expert" who has credibility with the target audience. One common use of the media tour is the book tour, where an author travels the country to promote a newly released book. A media tour may include other kinds of personal appearances in conjunction with special events, such as public appearances, speaking engagements or autograph signing opportunities.