Image Credits

Images on this website

On this website we have created many images from scratch but we have also used a number of images from Creative Commons and commercial sources. Others are in the public domain.

Creative Commons images

We wish to thank all the photographers and artists for enabling us to use their work through Creative Commons licensing.

H M Cotterill 

Nicole C Engard

Robert Peel

Juli Shannon

The Noun Project

Commercial images

Commercial images were purchased from iStock by Getty Images and include work by the following:

Dean Mitchell

Dariusz Paciorek

Antonio Guillem

James Brey

Gerald Burger

Howard Sayer Photography