“Island of Fire” is a quick, fun, pop-science-y primer on volcanism with a focus upon the Lakí eruptions of the late 18th-century. It’s a pretty easy read, and it gives some fun insight into Iceland’s history, culture, and how volcanoes interact with society.

https://www.amazon.com/Island-Fire-extraordinary-volcano-eighteenth-century-ebook/dp/B00IOLFGT2