"Faithfulness: Cultivating Spirit-given Character" by Calvin Miller is a study guide focused on cultivating spirit-given character through faith. Published in 2008 by Nelson Incorporated, Thomas, this book offers a six-week study on Christian life and faith. With a perfect format and written in English, this 130-page book is part of the Fruit of the Spirit Study Guide Series. The author's expertise and dedication to faithfulness make this book a valuable resource for individuals looking to deepen their relationship with God and develop a more Christ-like character.