Karoline is the author of numerous books. John, a 2014 preaching commentary that takes a deeper look into the Gospel of John. In 2016, she explored the experiences and challenges women in ministry face in SHE: Five Keys to Unlock the Power of Ministry. In 2020, she published A Lay Preacher's Guide: How to Craft a Faithful Sermon, a homiletics primer for the beginning preacher, and EMBODY: Five Keys To Leading With Integrity, a book that proposes a biblical model for church leadership. Belonging, a lay study on the Samaritan woman at the well, and Preaching the Word: Contemporary Approaches to the Bible for the Pulpit came out in 2023. She has also written essays, articles, and web posts. 

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Karoline oversees the popular homiletical resource, www.workingpreacher.org and has co-hosted the site's weekly podcast, Sermon Brainwave, since its inception.

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