Mathematics 2022: Your Daily Epsilon of Math: 12-Month Calendar - January 2022 through December 2022

The problems in this calendar are very difficult - I have a degree in Engineering and obviously haven't studied enough maths to even start on some of the problems!I've learnt quite a few new maths rules and conventions I'd probably have never come across otherwise, so I'm pleased I bought it - there's a good forum where people explain the answers...but it can be a bit depressing finding how far out of your depth you are with some of the problems :(

Although fairly useless as a calendar on which to record appointments and forthcoming events because each and every square has a mathematical problem in it, the fractal images are breathtakingly beautiful. Worth having just for the illustrations.