Charles Spurgeon was a pastor whose writings have been sadly neglected in our day, but I enjoy reading his masterful works. When I wanted to read a biography of him, I came across this one, and the author says this about it:
I found this biography a fascinating read, though sometimes a bit slow. It examines different aspects of the man and his life in each chapter, rather than being entirely chronological. Those who have no particular interest in Spurgeon are likely to be bored by the way it carefully lays out the facts, but those who are interested in him will likely appreciate the fairly thorough overview of his story. I enjoyed getting a fuller understanding of this man of God, including learning more about the two biggest controversies of his controversial ministry. His heroic stand for truth, even when it was unpopular, is inspiring.
This book is safe for all ages, and can be read for free online: Charles Haddon Spurgeon: A Biography
Whether or not you read this biography, you should at least read some of the writings of the man himself, such as this brilliant sermon: The Talking Book