I've received several questions about pre-ordering Introverts in the Church. According to the marketing folks at InterVarsity Press, my book will likely be available for pre-order on Amazon sometime in August. Amazon pre-orders are important, because many other book sellers and distributors use Amazon as a bellwether for how the book will do. If the book has a high number of pre-orders, then other bookstores and online retailers will place higher initial orders, and your average introverted Christian will be more likely to find the book at Barnes and Noble or their local Christian bookstore.
I'll let you know when Introverts in the Church is on Amazon - you'll get updates most directly and quickly on the Facebook page.