Join us as 3pm on Wednesday 29 July, as the Guardian’s Fiona Shields answers your questions about the art, sciences (and logistics) of covering the world through images.
Over the last few years Fiona has worked closely with photographers covering the wars in Ukraine, the Middle East and beyond; the seismic political shifts in the US and UK as well as thousands of daily events (captured brilliantly in our daily news photo galleries).
Please post your questions for Fiona now.
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