1, 2-obe, 3-vse, 4-1, 8, 11-obe, 26, 56, 57, 59, 62-obe, 63-2, 65-obe, 66-1, 70, 82, 87, 99, 104, 108-vse,  121, 124, 128, 131-desno, 138-levo, 237-levo, 290, 320, 326, 327-levo, 328, 329, 331, 472 (Tomaž Verbič Šalamon, na voljo pod licenco CC BY-SA 2.0);

13-2 (Jdurham, http://www.morguefile.com/archive/display/231701);

13-3 (© Graham Richards, http://www.geograph.org.uk/photo/89446, na voljo pod licenco CC BY-SA 2.0);

13-4 (©Lewis Clark, http://www.geograph.org.uk/photo/2581615, na voljo pod licenco CC BY-SA 2.0);

13-5 (NASA Goddard Space Flight Center Image by Reto Stöckli, na voljo pod licenco CC BY);

37-4 (Mararie, na voljo pod licenco CC BY-SA 2.0);

42-vse, 86-vse (MorgueFile, na voljo pod licenco: http://www.morguefile.com/license/morguefile);

98-2 (infomatique, na voljo pod licenco CC BY-SA 2.0);

98-3 (Abhinav & Abhinav, na voljo pod licenco CC BY-SA 2.0);

98-4 (Yamil Salinas Martínez, na voljo pod licenco CC BY-SA 2.0);

106, 131-levo-vse,  (ImageBase);

202-vse, 203-vse, 217 (Peter Žurej);

270-vse, 281-vse (Gorše Pihler Melita);

348 (http://baza.givo.si/);

300, 301, 302, 303, 464, 465, 466 (uporabljen emulator Casio, z dovoljenjem podjetja Casio Europe);

463-2 (www.virles.si);

463-4 (G.W.J. Beckers);

463-7 (http://www.indiana.edu/~libpres/manual/materials/notebook.html);

507 (www.vezenje-koren.si);

527-1 (nauk.si); 527-5 (zdumar.si);

527-6 (vsezazabavo.si); 608-1(CocoaZen, na voljo pod licenco CC BY-SA 2.0);

608-4 (http://img.diytrade.com);