This is a collection of the best maths posters and general display resources I have found on the Internet. Feel free to add any I have missed in the comments below!
Maths Posters
Maths Propaganda Poster Campaign – a collection of motivational maths posters in the style of World War propaganda from TES user ttxgw4.
Famous Mathematicians Posters – 11 colour posters of famous mathematicians in a PowerPoint file from TES user siyoung91.
Mathematical Moments – a series of posters from the American Mathematical Society to “promote appreciation and understanding of the role mathematics plays in science, nature, technology, and human culture”.
Plus Posters – high quality posters from Plus Magazine.
General Posters
Venspired – very artistic posters from Krissy Venosdale.
Tools
Block Posters – an online tool for creating huge posters from your own images.