Instruct: Classify Amazon reviews into positive or negative sentiment
Query: not a book on biblical manhood

The purpose of this book is to not to teach you, from the Bible, how to be a man. The Author even says from the outset "They (being men) need a deeper understanding of why they long for adventures and battles and beauty and why God made them just like that." This is not what the Bible teaches about Biblical manhood. For that, check Eph 4:12-15.