I've always been interested in visual puzzles and I've always been interested in Leonardo da Vinci. When I read Dan Brown's novel "The Da Vinci Code" I began to wonder if maybe there really were things in da Vinci's work itself that were hidden in plain sight. I began to look at his work with the help of Photoshop. I found other images hidden in the pictures, a sort of "find the thirteen hidden squirrels" type of picture puzzle. I believe them to be deliberate images, placed by a dazzling genius and left waiting to be found. I'll leave it to you to make up your own mind whether they are deliberate or just mere chance.