Image Credits

1. Texture, 2014
   Photograph: Clara Hoke.


2. Stacks of Soviet 7.62 mm ammunition seized during Operation URGENT FURY, Grenada, 1983.
   Photograph: U.S. National Archives.


3. Sterling Memorial Library, Yale University, Photographs (RU 696)
   Photograph: Manuscripts and Archives, Yale University Library.


4. Part of a printing press, Musée des Arts et Métiers, Paris, 2015
   Photograph: Joe deSousa.


5. Dust cyclone (left) and dust catcher, Blast Furnace 5, Landschaftspark Duisburg-Nord, 2009
   Photograph: H005.


6. Favicon
   
7. Simple acorn, created by nemanja-poslovno706652 - Vecteezy.


8. Icons
   
9. Article, from Business pack, created by Talha Dogar - Flaticon.
10. Avatar, from E-Commerce, created by Marcel Boer - The Noun Project.
11. Book, from Hipster pack, created by Good Ware - Flaticon.
12. Chapter, from Podcast pack, created by Mehwish - Flaticon.
13. Country outlines
14. Afghanistan, Chad, Colombia, Mozambique, and Nigeria, from Country Maps pack, created by Anditii Creative - Flaticon.
15. India, Indonesia, Lebanon, and Yemen, from World Map Asia Region pack, created by Ranah Pixel Studio - Flaticon.
16. Somalia, from African Countries Maps, created by Mohamed Mb - The Noun Project.
17. Debate, from Symbols Vol. 5, created by Greg Cresnar - The Noun Project.
18. Planet Earth, from Geography pack, created by Freepik - Flaticon.