Acknowledgements
Photos in this text were obtained from a number of different sources. The following photos were downloaded from Unsplash:
- The textbook cover includes photos by Štefan Štefančík, Jan Antonin Kolar, & Mike Petrucci
- Lego Harry Potter photo by Montse Esca
- Reflection photo by Laurenz Kleinheider
- Toothbrush photo by Alex Padurariu
- Confused handsome man photo by bruce mars
- Bear photo by Marc-Olivier Jodoin
- Reading photo by Siora Photography
- Laptop photo by Super Snapper
- Beer! sign photo by Lance Anderson
- Happy writing friends photo by Brooke Cagle
- Grandparent photo by Z
- Map photo by Sebastian Herrmann
- Weird hobby car photo by Tina Bosse
- Famous hat photo by Jon Tyson
- Interview photo by Christina @ wocintechchat.com
- Recording phone photo by Soundtrap
- Thank You note photo by Kelly Sikkema
- Transcribing photo by Nathana Rebouças
- Theater performance photo by Erik Mclean
- Portrait of an Asian Woman by Kimson Doan
- Anonymous portrait by Jaroslav Devia
- Old pilot photo by Galt Museum & Archives
- Man pulling cart photo by Thiago Teles
- Gang member with guns by Brian Lundquist
- Hunter photo by Austin Tate
- Research photo by Windows
- Dictionary photo by Sandy Millar
- Wikipedia photo by Luke Chesser
- Yawn photo by Sander Sammy
- “Stop Abortion Now” photo by Maria Oswalt
- “Keep Abortion Legal” photo by Gayatri Malhotra
- Buddy fist bump photo by Markus Spiske
- Cassette photo by Volodymyr Hryshchenko
- Scuba photo by Conner Baker
Various other photos were used under Creative Commons license. Links to the original sources are provided below:
- Beyonce photo
- Markiplier photo by Gage Skidmore from Peoria, AZ, United States of America, via Wikimedia Commons
- The Mona Lisa
- Boaty McBoatface by Seloloving, CC BY-SA 4.0, via Wikimedia Commons
Some photos are in the public domain:
- Migrant Mother used courtesy of the Library of Congress, Prints & Photographs Division, Farm Security Administration/Office of War Information Black-and-White Negatives.
This graph was released to the public by the federal government (the U.S. Energy Information Administration):
- U.S. Average Winter Natural Gas Heating Expenditures graph, from the US EIA “Today in Energy” newsletter, March 8, 2012.
The photo of a man with his head stuck up a giant metal bull’s buttocks was provided by the author.
And one photo was used because it was impossible to do it any other way:
- The Hitchhiker’s Guide to the Galaxy cover was from this Time Magazine article.