The Maddy series does not have a new book coming out soon. The latest book, Maddy: Diet Diva (Book 3), was published in April 2009.
The first book in the Maddy series, Jealousy Junkie: Cringes, Confessions and Caught-On-Camera Clangers!, was published in April 2007.
The Maddy series primarily falls into the General Fiction genre. This middle grade series was written for ages 8-12, but can be enjoyed by older readers as well.