Teeming with images of spectacular underwater scenes from around the world, Call of the Blue is the culmination of a five-year project by the photographer and ocean conservationist Philip Hamilton. This groundbreaking book includes contributions from acclaimed scientists and ocean “guardians”, who reveal what drove them to answer the call of the blue. (Photo by Philip Hamilton/The Guardian)

Yedam Kim (L) and Chaewon Kim, both of South Korea, look at a smartphone backstage after performing on stage during the first day of the 51st Prix de Lausanne at the Theatre de Beaulieu, in Lausanne, Switzerland, 30 January 2023. (Photo by Laurent Gillieron/EPA)

A woman holds a skull during a “Dia de los natitas” (Day of the Skull) ceremony at the Cementerio General of La Paz. (Photo by David Mercado/Reuters)

“The banker”. Underwater Sculpture, Museo Subacuático de Arte, Cancun. (Photo by Jason deCaires Taylor/UnderwaterSculpture)

A boy flies his kite in a cemetery in the Vila Operaria Favela of Rio de Janeiro, Brazil, July 9, 2016. (Photo by Nacho Doce/Reuters)

A worker carries a basket of fish, at a wholesale fish market, on the outskirts of Kolkata, March 15, 2017. (Photo by Rupak De Chowdhuri/Reuters)

The tail of a stranded whale is pictured on the beach of De Haan, Belgium on October 25, 2018. (Photo by Francois Lenoi/Reuters)