Are we in danger of forgetting how to look properly at the world around us? One of Today's guest editors- David Hockney - thinks so.
Here - with help from some of the artist's personal photograph collection - see what happened when he tried to open Evan Davis' eyes on a tour of the countryside and seaside around his home town of Bridlington.
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Woodland and studio portrait photos courtesy Jean-Pierre Goncalves De Lima and Jonathan Wilkinson. Slideshow production by Lee Chaundy and Paul Kerley. Publication date 29 December 2009.