I've never actually gotten around to diving into this topic before, but every time one of Tai-Danae Bradley's publications pops up I am awed by how much care she puts into crafting these from the layout to the illustrations
https://edwardtufte.github.io/
(If you like the design, you'd like Tufte's books.) Anyway, her paper is fun to read and one of the most beautiful papers I've read in terms of layout and design - I like the contrast between the hand-drawn illustrations and the abstract content. It reminds me of Lin Clark's Code Cartoons (https://code-cartoons.com/) .