Bests & Worsts Reviews from Amazon

I got this for my son because hes become very interested in his body. Why the f$^@*!& does a book by Smithsonian have an anatomically incorrect illustration of the human body? In other words where is the foreskin?? Why is this normal, biologically important part of the body just completely left out? I'm returning the book, I'm not keeping something that is going to teach my kids that it in order to be "normal" they have to have a piece of their body cut off.