Laurent Geslin / Orthodox priest reading from a Holy book, Beita Gabrielle church, Lalibela, Ethiopia, 2006

Terry Whittaker / 2020VISION / Grey heron (Ardea cinerea) amongst visitors in Regent's Park, London, UK, April 2011. Photographer quote: 'It was fascinating to watch public reaction to the large numbers of herons in London's parks...

Terry Whittaker / 2020VISION / Grey heron (Ardea cinerea) beside visitor reading book on bench in Regent's Park, London, UK, April 2011. Model released.

Florian Möllers / Photographer Florian Mollers having breakfast beside a female Mallard (Anas platyrhynchos) nesting in window box of a 4th floor flat, Berlin, Germany, June. Model released

Jeff Wilson / Boy studying Koran inside Mosque, Lahore, Pakistan, 2006

David Woodfall / Children in Primary school class, nr Tala, Ganges delta, Bangladesh, June 2008

Jerry Monkman / Nature Conservancy employees cutting back Japanese knotweed (Fallopia japonica) in an invasive species eradication effort on the TNC's Silverweed Seep preserve in Plainfield, New Hampshire, USA.

Colin Monteath / Campers read in tents lit by flashlight, Cascade Saddle, Mount Aspiring National Park, New Zealand

David Tipling / Red deer (Cervus elaphus) stag and hind and local reading paper at dawn during rut Bushy Park London, England, UK. October

Ashley Cooper / Thermometer taking the air temperature as part of a study to measure the speed of the Russell Glacier near Kangerlussuaq, Greenland.

Nick Upton / Catherine McNicol reading the PIT tag number of a Grey Squirrel (Sciurus carolinensis) she has re-trapped in a live capture trap while monitoring the squirrel population in the area where their predat...

Kirkendall-Spring / Camper reading inside tent above Island Lake, Wind River Range, Bridger Wilderness, Bridger National Forest, Wyoming, USA. September 2015. Model released.