29. Image credits
“Triboro bridge” by lunita lu, via
http://www.flickr.com/photos/wildchild/3742044959/
“National Library Symbol 9high-definition)” by ALA – The American Library
Assocation, via http://www.flickr.com/photos/ala_members/4816752596/
“just a car” by photography.andreas, via
http://www.flickr.com/photos/photography-andreas/5564611514/
“design sketchbook 1976 09” by smallritual, via
http://www.flickr.com/photos/smallritual/3225596779/
“Maker Signpost” by jwelcher, via
http://www.flickr.com/photos/jwelcher/4638162978/
“Slippery when frosty” by yooperann, via
http://www.flickr.com/photos/yooperann/5491375958/
“Ruud klust” by ianus, via http://www.flickr.com/photos/ianus/10919260/