While many of us struggle to understand it, the Trinity is one of the most important teachings of the Christian faith. It defines God's very essence and describes how he relates to us. And while it can be a difficult concept to get our heads around, it is crucial for believers to understand how God explains his triune nature in his word. In this book, James R. White offers a concise, understandable explanation of what the Trinity is and why it matters. 

In Foundations: An Overview of Systematic Theology, R.C. Sproul shows that the truths of Scripture relate to each other in perfect harmony. This eye-opening series addresses a myriad of questions about the origin and authority of the Bible, God, the Trinity, man, sin, salvation, revelation, miracles, the church, the end times, and more.

Dr. Sproul surveys the history of apologetics and demonstrates that reason and science are your allies in defending the existence of God and the historical truth claims of Jesus Christ.

Institutes of the Christian Religion is John Calvin's seminal work on Protestant systematic theology. Highly influential in the Western world and still widely read by theological students today, it was published in Latin in 1536 and in his native French in 1541. The book serves as an introductory textbook on the Protestant faith for those with some previous knowledge of theology and covers a broad range of theological topics from the doctrines of church and sacraments to justification by faith alone and Christian liberty.

In a world increasingly indifferent to Christian truth, followers of Christ need to be equipped to communicate with those who do not speak their language or accept their source of authority. In Tactics, 10th Anniversary Edition, Gregory Koukl demonstrates how to artfully regain control of conversations, keeping them moving forward in constructive ways through thoughtful diplomacy. You'll learn how to stop challengers in their tracks and how to turn the tables on questions or provocative statements. Most important, you'll learn how to get people thinking about Jesus.

For 300 years, The Pilgrim's Progress has remained perhaps the best-loved and most read of devotional fictions. In plain yet powerful and moving language, Bunyan tells the story of Christian's struggle to attain salvation and the Gates of Heaven. He must pass through the Slough of Despond, ward off the temptations of Vanity Fair, and fight the monstrous Apollyon. In Part II, his wife and children follow the same path, helped and protected by Great-heart, until for them, too, "the trumpets sound on the other side."

This book is for the Christian and skeptic alike. Is Christianity a mindless game hurling us into the storms of life, or are the instructions so detailed that we can know well enough what the storm will be like, who is in control, and what to do when on solid ground? In the end, is it Christianity that has failed, or is it the Church - as God's representative - that has failed?

With more than 315,000 print copies sold, this is the story of the church for today’s listeners. Dr. Bruce Shelley makes church history come alive in this classic audiobook that has become not only the first choice of many laypeople and church leaders but the standard text in many college classrooms.

How (Not) to Be Secular is what Jamie Smith calls "your hitchhiker's guide to the present" - it is both a reading guide to Charles Taylor's monumental work, A Secular Age, and philosophical guidance on how we might learn to live in our times. Taylor's landmark book, A Secular Age (2007), provides a monumental, incisive analysis of what it means to live in the post-Christian present - a pluralist world of competing beliefs and growing unbelief. Jamie Smith's book is a compact field guide to Taylor's insightful study of the secular.

In this revised edition of a formerly four-volume work, James Boice provides an overview of all the major doctrines of Christian theology in one volume. Boice carefully opens the topics like the nature of God, the character of his natural and special revelation, the fall, and the person and work of Christ with scholarly rigor and a pastor's heart.

In this definitive biography, renowned Bible scholar, Anglican bishop, and best-selling author N. T. Wright offers a radical look at the apostle Paul, illuminating the humanity and remarkable achievements of this intellectual who invented Christian theology - transforming a faith and changing the world. For centuries, Paul, the apostle who "saw the light on the Road to Damascus" and made a miraculous conversion from zealous Pharisee persecutor to devoted follower of Christ, has been one of the church's most widely cited saints.

Many people react negatively to the word theology, believing that it involves dry, fruitless arguments about minute points of doctrine. Yet as Dr. R.C. Sproul argues, everyone is a theologian. Any time we think about a teaching of the Bible and strive to understand it, we are engaging in theology. Therefore, it is important that we put the Bible's varied teachings together in a systematic fashion, using proper, time-tested methods of interpretation so as to arrive at a theology that is founded on truth.

We all have doubts that challenge our faith. We wonder whether the Bible still matters, or whether God is truly as loving and personal as we hope. In his first ever devotional, The Logic of God, apologist Ravi Zacharias offers 52 entries that explain how and why Christianity, the Bible, and God are still relevant, vital, and life-changing for us today. To all our dilemmas, Ravi says, "I am convinced that Jesus Christ alone uniquely answers the deepest questions of our hearts and minds."  

In The Story of Christianity, Vol. 1, Justo L. González, author of the highly praised three-volume History of Christian Thought, presents a narrative history of Christianity from the early church to the dawn of the Protestant reformation. From Jesus' faithful apostles to the early reformist John Wycliffe, González skillfully traces core theological issues and developments within the various traditions of the church, including major events outside of Europe, such as the Spanish and Portuguese conquest of the New World.

The 2011 award-winning publication The Christian Faith garnered wide praise as a thorough, well-informed treatment of the philosophical foundations of Christian theology, the classical elements of systematic theology, and exegesis of relevant biblical texts. Pilgrim Theology distills the distinctive benefits of this approach into a more accessible introduction designed for classroom and group study. In this book, Michael Horton guides readers through a preliminary exploration of Christian theology in "a Reformed key".