Extreemly long book, beware. It took my multiple months to reed. That is by far the longest it has ever taken me to reed a book. But it was worth it. U shud reed this book if u hav alredy red things like The Red Queen, Evolutionary Psychology: the new science of mind becus those books give a better introduction to the fild. But if u still havent gotten enof, then this book is for u.