Sources of the stock photos
(See #9 on the About page)

All of the photos at the bottom of these pages were randomly chosen from pixabay.com. This sourcing in no way represents an endorsement of pixabay — it is one of several seemingly equal such offerings on the web — and if there is any misunderstanding about that, replacement photos will be inserted from multiple stock-photo sources. (TCQ is always entirely non-commercial, accepting no sponsored content or advertising and issuing no endorsements; see #6 on the About page.)

Pixabay usernames of photographers whose work is included on this website:

Albrecht Fietz
Bruce Emmerling
Charles Nambasi
Chris Thornton
David Mark**
Dean Moriarty
edi-nugraha
Edmondlafoto
Foundry_Co
Free-Photos
Hans Braxmeier
Igor Ovsyannykov
Jeniffer Wai Ting Tan
Michael Gaida*
Msandersmusic
My_Luu
Nathalie Dunand
Nino Carè
Philipp Reiner
PublicDomainPictures
Q_K
Snotty Boggins
SofieLayla Thal
Varun Kulkarni
Zachtleven-fotografie

*source of more than a quarter of the photos
**source of more than half of the photos