To be clear, mathematics consists of much more than images. Even in that first, introductory article, I found several mathematical expressions, including the fairly benign looking $z \to z^2+c\text{.}$ For me, mathematical intuition deals largely with the relationship between images and formulae. Yet, images alone can extremely captivating and don't need a lot of formal effort to appreciate. Thus, let's start by looking a few of the images that we'll learn about.