You spend eight-plus years working on a book, and it’s easy to lose perspective — to no longer have any sense of how your work is going to be received by someone who hasn’t, you know, spent eight-plus years working on that book.

This starred review from Booklist
dispelled any worries in its very first sentence:

The fascinating story of John Roy Lynch’s life from slavery to his election to the U.S. House of Representatives at age 25, gets a stirring treatment here.

That makes two stars for The Amazing Age of John Roy Lynch, and one very happy writer.