Finally something useful: a BPMN poster:
Claims to have everything you need to know. It certainly contains a lot of useful info. It is from the University of Maribor, Faculty of Electrical Engineering and Computer Science, Institute of Informatics, in Slovenia. The authors invite comments, and I imagine a comment on this post will get them.
Thinking Matters 
Pingback: Poster de Notación BPMN « Espacio SOA
Hello,
as a result of unexpected BPM community interest, BPMN poster has moved to faster servers at http://www.itposter.net
More posters were added also (Linux, UML, SQL, PRINCE2, ITIL, POEM)
-tomi
Pingback: Póster de Notación BPMN
As BPMN 1.1 comes with quite a number of new notational elements, we have created a new poster.
You can download it here: http://bpt.hpi.uni-potsdam.de/pub/Public/BPMNCorner/BPMN1_1_Poster_EN.pdf
-gero