Guardian picture editor Fiona Shields will host a live chat on Wednesday 29 July at 3pm, answering readers' questions about the art, sciences and logistics of covering the world through images.
Shields has worked closely with photographers covering wars in Ukraine, the Middle East and beyond, as well as seismic political shifts in the US and UK, and thousands of daily events captured in the Guardian's daily news photo galleries.
How to Participate
Readers can post their questions for Fiona now by signing in or creating a Guardian account to join the discussion.
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Related Reading
Explore some of the featured photo essays:
- 'This girl was braver than I was': Julia Kochetova's astonishing photographs of war in Ukraine
- Week in wildlife: a thirsty baby hedgehog, a rare puffling and a jumping spider
- The week around the world in 20 pictures
