Back in 2009, a fine developer for Los Techies produced a set of mocked up motivational posters representing the SOLID principles . She was even kind enough to release them under a Creative Commons license. But as is the way of all things, internet rust has set in and the images have been unlinked from the original article during an archive exercise - but they live on throughout the internet! I have collected the images here - and would like to say " Thank you, River Lynn Bailey ". This is a great, amusing and educational resource for everyone.