The "God Pocket" is a short read (124 pages) by Bruce Wilkinson with David Kopp is simply put, a book about giving. I have read many books about giving, but this one is not one of my favorites.
In chapter one, the book opens with a fictional story that captivates the audience. It provides the readers with the reminder that all we own belongs to God - "it is God's money." This is profoundly true, but the author elaborates this notion in an unbiblical way. Wilkinson notes that there are seven steps to you maintaining a "God Pocket:" Decide, Devote, Deposit, Depend, Deliver, Declare, and Disciple. Simply put, you choose an amount you would like to give away, and wait on God's direction and guidance to do so. I personally believe that you should allow God to determine the amount you need to give away, instead of trusting your humanly instincts to do so. He is the one in control, not us.
I also disagreed with chapter five, "The Mystery of Multiplying: God's surprising plan to replenish the resources you give." While it is true that God can, and sometime does reward us for our generosity, it is not a promise, and should never be an expectation. We may never know what he had in mind with our gift, and we may never see any fruit from it. To promise Christians that if they give, God will repay them is untrue. We will be rewarded, but it may not be until eternity, and to tell others contradictory to this is unbiblical.
While this book does help open your eyes to giving, there are several other books I would recommend to others before this one.