It reminds me that each year Freiberg University of Mining and Technology publishes a calendar of Complex Beauties[1], of which I buy several copies as gifts ev

It reminds me that each year Freiberg University of Mining and Technology publishes a calendar of Complex Beauties[1], of which I buy several copies as gifts every year. It includes 12 visualizations of selected complex functions and their background and related mathematicians. I would highly recommend reading them. Prof. Dr. Elias Wegert, the author who actively contributes to this calendar, also wrote Visual Complex Functions: An Introduction with Phase Portraits which is mentioned by another comment here. [1]: https://blogs.hrz.tu-freiberg.de/mathekalender/english/ https://blogs.hrz.tu-freiberg.de/mathekalender/english/ Edit: Navigate to the german page if you want to buy it