The Zach and Lucy series does not have a new book coming out soon. The latest book, Zach and Lucy and the Yoga Zoo (Book 2), was published in February 2016.
The first book in the Zach and Lucy series, Zach and Lucy and the Museum of Natural Wonders, was published in January 2016.
The Zach and Lucy series primarily falls into the General Fiction genre. This series was written for ages 5-7 and is a good choice for children just learning to read.