This wonderful book seeks to answer the question: Is the God of the Old Testament Angry, Sexist and Racist? David T. Lamb is an Old Testament professor at Biblical Theological Seminary in Pennsylvania. He does an excellent job exploring the Old Testament in context and comparing Yahweh in the OT to Jesus in the NT.
The book is not shallow, but it is written in casual language with lots of modern and cultural references that will be familiar to people. He also includes discussion questions for each chapter in a section at the end of the book.
It's a great way for people to be introduced to OT theology and biblical studies while also answering practical questions. I look forward to using this book in the future for small groups or sunday school classes.