This is the classic war poster "Keep Calm and Carry On" reworded to "Keep Calm and Listen To Dad". The words "Listen To Dad" are added as though they're on a sticker (or a stamp) over the original wording. Brilliant advice for ALL SITUATIONS as far as my dad is concerned. Makes great father's day presents.
I've put this on a purple background, but you can change that really easily. Hit 'Customize it' and then 'edit', and you'll be able to change to absolutely ANY color you prefer.