Merchandise
As of 2009, six books have been released about the Family Guy universe, all published by HarperCollins since 2005. The first, Family Guy: Stewie's Guide to World Domination (ISBN 978-0-06-077321-2) by Steve Callahan, was released in April 26, 2005. Written in the style of a graphic novel, the plot follows Stewie's plans to rule the world. Other books include Family Guy: It Takes a Village Idiot, and I Married One (ISBN 978-0-7528-7593-4), which covers the events of the episode "It Takes a Village Idiot, and I Married One"; and Family Guy and Philosophy: A Cure for the Petarded (ISBN 978-1-4051-6316-3), a collection of 17 essays exploring the connections between the series and historical philosophers.
Family Guy has been commercially successful in the home market. The show was the first to be resurrected because of high DVD sales. The first volume, covering the show's first two seasons, sold 1.67 million units, topping TV DVD sales in 2003, while the second volume sold another million units. Volumes six and seven debuted at fifth place in United States DVD sales; volume seven was the highest-selling television DVD, selling 171,000 units by June 21, 2009. Family Guy Presents Blue Harvest, the DVD featuring the Star Wars special "Blue Harvest", was released on January 15, 2008, and premiered at the top of United States DVD sales. The DVD was the first Family Guy DVD to include a digital copy for download to the iPod. In 2004 the first series of Family Guy toy figurines was released by Mezco Toyz; each member of the Griffin family had their own toy, with the exception of Stewie, of whom two different figures were made. Over the course of two years, four more series of toy figures were released, with various forms of Peter. In 2008 the character Peter appeared in advertisements for Subway Restaurants, promoting the restaurant's massive feast sandwich.
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