Although I am normally an advocate of telling how to do things, rather than telling how not to do them, I must recommend this slideshow from The Guardian’s Data Blog: 16 useless infographics.
https://crastina.se/wp-content/uploads/2013/08/useless_featured.png806851Olle BergmanOlle Bergman2013-08-13 14:10:102016-07-27 23:06:53Poor infographics adds to the communication noise