This "new" book is not exactly new, since it's US edition of a book originally published in the UK. It's Be Saints! An Invitation from Pope Benedict XVI.
Originally published by the Catholic Truth Society, it is now available through Ignatius Press in the US and Canada. Ann Kissane Engelhart created the paintings to accompany excerpts from Pope Benedict's talk to youth at the "Big Assembly" during his visit to England in 2010.
Here's the Ignatius Press page for the book.
And you can purchase it through any Catholic bookseller (I hope) - here's the link for Aquinas and More.