We have used the following pictures under the Creative Commons Attribution license. The list of the materials used:
  • Moyan Brenn – Amsterdam (https://www.flickr.com/photos/aigle_dore/5086332663) CC-BY-2.0 / Image copyrights Moyan Brenn
  • Moyan Brenn – Silence (https://www.flickr.com/photos/aigle_dore/20955163294/) CC-BY-2.0 / Image copyrights Moyan Brenn
  • Moyan Brenn – Walking (https://www.flickr.com/photos/aigle_dore/5481288539/) CC-BY-2.0 / Image copyrights Moyan Brenn
  • Florent Revest – Modern Life (https://www.flickr.com/photos/florent_revest/9690546756/) Attribution-ShareAlike 2.0 Generic (CC BY-SA 2.0) – Share — copy and redistribute the material in any medium or format; Adapt — remix transform and build upon the material for any purpose even commercially.
  • Rick Ligthelm – London Englandy (https://www.flickr.com/photos/ligthelm/15940408716/) Attribution 2.0 Generic (CC BY 2.0) – Share — copy and redistribute the material in any medium or format; Adapt — remix transform and build upon the material for any purpose even commercially.
  • Hernán Piñera – Notes (https://www.flickr.com/photos/hernanpc/28387576640/) Attribution 2.0 Generic (CC BY 2.0) – Share — copy and redistribute the material in any medium or format; Adapt — remix transform and build upon the material for any purpose even commercially.
  • Alan O’Rourke – Swiss Army – Pen Knife – Pocket Knife (https://www.flickr.com/photos/toddle_email_newsletters/17466652703) Attribution 2.0 Generic (CC BY 2.0) – Share — copy and redistribute the material in any medium or format; Adapt — remix transform and build upon the material for any purpose even commercially.
  • Mike Carlino – Angry Zebra (https://www.flickr.com/photos/mikemcarlino/5310196047/) Attribution 2.0 Generic (CC BY 2.0) – Share — copy and redistribute the material in any medium or format; Adapt — remix transform and build upon the material for any purpose even commercially.
  • verkeorg – 98361100 (https://www.flickr.com/photos/verkeorg/25010455192/in/photostream/) Attribution-ShareAlike 2.0 Generic (CC BY-SA 2.0) – Share — copy and redistribute the material in any medium or format; Adapt — remix transform and build upon the material for any purpose even commercially.
  • ximateix! – Expo Saragossa 2008 (https://www.flickr.com/photos/25904041@N00/2714149482/in/photostream/) Attribution-ShareAlike 2.0 Generic (CC BY-SA 2.0) – Share — copy and redistribute the material in any medium or format Adapt — remix transform and build upon the material for any purpose even commercially.
  • TopRank Marketing Conference Audience (https://www.flickr.com/photos/toprankblog/10573406056/) Attribution 2.0 Generic (CC BY 2.0) – Share — copy and redistribute the material in any medium or format Adapt — remix transform and build upon the material for any purpose even commercially.
  • Mikel Larreategi – Conference Hall (https://www.flickr.com/photos/erral/2955705824/) Attribution 2.0 Generic (CC BY 2.0) – Share — copy and redistribute the material in any medium or format Adapt — remix transform and build upon the material for any purpose even commercially.