Animorphs is a young-adult science fiction book series. They were written by K. A. Applegate and published by Scholastic. It is told in the first person, from perspectives of 6 different characters; Rachel, Cassie, Jake, Tobias, Marco, and Aximilli-Esgarouth-Isthil. A different character is featured for each book. It was published from June 1996 to May 2001. There are 54 books in the series.