They Say Blue follows a young girl as she contemplates colours in the known and the unknown, in the immediate world and the world beyond what she can see. The sea looks blue, yet water cupped in her hands is as clear as glass. Is a blue whale blue? She doesn’t know — she hasn’t seen one. Stunningly beautiful illustrations flow from one spread to the next, as time passes and the imagination takes hold. The world is full of colour, and mystery too, in this first picture book from a highly acclaimed artist.