The world's most disturbing children's book?

From dormitem.com

Browsing the internet leads you to find lots of funny and scary things. This is amongst the funniest and scariest. Long live the fine line between educational and downright creepy.

Here are some shots of the book.

What ever happened to "One Fish, Two Fish, Red Fish, Blue Fish"?

p.s.
I don't actually own this book, I just found the pictures in the vast universe we call the internet. Enjoy.