From the book reviews:
The authors give a detailed account of his early life, his parents, and Stųrmers growing interest in mathematics, astronomy, and botany. for those who have seen, or harbour hopes of seeing, the lights in the northern sky, this is a book worth reading as it will infect the reader with some of Stųrmers magic and will make the experience so much more meaningful. (Ken Kennedy, The Observatory, Vol. 134 (1242), October, 2014)