As Microsoft states on this website: ‘…These technical posters and infographics are excellent for learning and training. Zoom into details, download, or print (26X30"/66.04X99.06cm). Most of these posters and all future posters will link to deeper technical content through the mobile tags for a more complete set of information...’
These infographics contains loads of information for anyone working with Windows Azure. So my advice is: Get them all!