The series launched in June 2000, with subsequent novels being released every three months. As part of a marketing campaign, Scholastic issued a national print ad campaign, created a Seventh Tower Web site and a Seventh Tower hotline that children could call, as well as distributing one million Seventh Tower teaser booklets to children in the U.S. through its network of Scholastic school book clubs. The cover design and art were created by Madalina Stefan and Steve Rawlings, respectively.
