https://www.amazon.com/gp/product/B00EGWEYTG/This book is very good.  It convincingly shows that early humans, hunter-gatherers, were monogamous.  Polygamy came with agriculture.  The book shows that polygamy causes endless wars.  We know that war encourages polygamy by causing a shortage of men, but it is equally true that polygamy causes war so that single men can capture women from other societies.  This is a convincing argument against Islam, which follows the pattern of having endless wars.