The Nerd Girls series does not have a new book coming out soon. The latest book, Nerd Girls (A Catastrophe of Nerdish Proportions) (Book 2), was published in August 2012.
The first book in the Nerd Girls series, Nerd Girls (The Rise of the Dorkasaurus), was published in July 2011.
The Nerd Girls 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.