We have this in Canada and have for several years now. The
pictures take up the outside
of the pack, and include images
of babies with
smoking moms, pregnant smoking women, cancerous lungs, brown stained ugly teeth, so on and so. Underneath is a big warning such as "smoking will harm your children", etc.
It hasn't so much made people quit that are already addicted, but has proven to be a fairly good deterrent in stopping people (especially young people) from starting.