The Indigo Notebook series does not have a new book coming out soon. The latest book, The Jade Notebook (Book 3), was published in February 2012.
The first book in the Indigo Notebook series, The Indigo Notebook, was published in October 2009.
The Indigo Notebook series primarily falls into the General Fiction genre. This young adult series was written for ages 12-17, but can be enjoyed by adults too.