[Editor’s note: This post contains s*xually graphic images.]

Images from a children’s book are spreading all over the internet for the very detailed way conception and childbirth are presented.

How a Baby is Made, written by Danish writer and therapist Per Holm Knudsen, was originally published in the 1970s, but is currently surging in popularity. 

According to BuzzFeed, the images were posted to Facebook by Crysta-Mai Elassaad on June 10. They’ve already been shared over 100,000 times.

Is this the best way to educate children about reproduction? Take a look for yourself.

The cover seems innocent enough…

Here is our loving couple:

…And here is where it gets graphic:

Things start to get hot and heavy between Mom and Dad:

A child is conceived:

Here’s an explanation of what is happening inside the mother:

Getting closer to the birth…

Almost there…

The day has arrived:

Off to the hospital:

The doctor arrives:

Here comes the baby!

Even the doctor is excited:

That’s one happy couple:

Original copies of the book are now selling for over $2,000 on Amazon since its sudden spike in popularity.