Our son's Church bought this book for the congregation and he gave me a copy - I'm about 3/4 through and it is a very good, thought provoking book that will add to your understanding of God.
The book is Dane Ortland's Gentle and Lowly; the heart of Christ for sinners and sufferers. It has multiple ISBN's:
Church Edition, ISBN: 978-1-4335-8039-0 - this is the paperback edition, I assume bulk buys?
Hardcover ISBN: 978-1-4335-6613-4
ePub ISBN: 978-1-4335-6616-5
PDF ISBN: 978-1-4335-6614-1
Mobipocket ISBN: 978-1-4335-6615-8
I don't even know what the last one is! It is not a long book, 23 short chapters, but it is very well done.