This poster shows the marvellous paradox of clouds — how they appear as featherlight wisps drifting lazily through the sky, yet secretly carry the staggering weight of millions, even billions, of pounds of water. Through playful illustration and lyrical prose, it reveals the hidden grandeur of the everyday sky, inviting us to marvel at how these gentle giants remain buoyant against all odds — a quiet miracle of physics cloaked in cotton wool.