32 FREE tools to help build a firm faith.

Crucial Questions Series (32 vols.)

In the Crucial Questions Series from Ligonier Ministries, renowned pastor and theologian R.C. Sproul provides succinct yet comprehensive explanations of essential Christian teachings. Covering theological topics such as the Trinity, the Holy Spirit, baptism, and providence, Sproul also looks at practical questions such as how to deal with guilt and the Christian’s experience of joy.

The titles in this collection are ideal discipleship tools and will help all Christians to learn about how the Bible treats these timeless subjects.

Here is a complete list of the free ebooks in the Crucial Questions series

Are you a Logos user?

You can also download the free collection from Logos.

Please share these resources with your church, family, and friends. Not sure how to download an eBook? Please see Ligonier’s FAQ section.


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We exist to glorify and honor God by equipping Christians to diligently “go and make disciples” and contend for the faith, in a morally and spiritually bankrupt culture — with gentleness and respect.

Brian Dobler

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