Remember when you were first told about the birds and the bees?
Perhaps the talk involved some interesting explanations from your parents accompanied by some awkward hand gestures and much blushing.
Or perhaps they just gave you a book to read.
While this may have seemed the least embarrassing option, there’s a book making the rounds that’s certainly challenging that theory!
Released in 1975, How A Baby Is Made was written by Danish author Per Holm Kundsen who was also a teacher and psychotherapist.
And when you see the graphic cartoons used throughout the guide, you’ll soon understand why it’s gone viral.
But this is one book words can’t do justice – so check out the images for yourself above!
Perhaps it’s not quite safe for work, then again – it is just the birds and the bees…
Photos: Crysta-Mai Elassaad