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is the author of ‘On the Map: Why the world looks the way it does’. He explains why a map is not always just a chart of land, but a biography of our past.

is an Associate Professor and Senior Research Fellow at the Oxford Internet Institute and contributor to the Guardian.

He tells us how layers of information are added to maps in the digital age, and explains why some areas of the world are so lacking in information.

Bob is the Sherlock Holmes of pop culture. When he isn’t working or writing books, he hunts down the locations where classic album covers were photographed for his website .

We join Bob as he hunts down the location of ‘Judy Collins Sings Bob Dylan’.

Paula is a Senior Map Curator at the , with a particular interest in Polar Maps.

She shows us some historical maps, and explains how influential the cartographer’s were in making the map, and why the world seemed so different to people in the past.

is an independent data scientist, artist and technology writer, who in 2011 created the Christchurch recovery map.

He tells us how he created the map, and what it did to help people affected by the disaster.

is a reporter for Radio New Zealand. A resident of Christchurch, she reported on the 2011 earthquake and followed the continuing reconstruction of the city.

She takes us round the city, explaining what it was like in the immediate aftermath of the quake and how much still needs to be done.

Manik leads , a project to build the most accurate and in-depth maps for countries around the world.  

is the Reader in Human Evolution and the Public Understanding of Science at the  Institute for Human Evolution, School of GeoSciences, University of the Witwatersrand.

He shares the story of how he almost lost the most important discovery of his carreer due to GPS.